Answer: because they can reproduce on their own
Explanation: it makes it easier for them to grow their plants
This video is an example of a behavior's acceptability varying by the situation, taken from the country of New Zealand. How do you think culture shapes our view of acceptable and unacceptable behaviors? Do you think there are certain cultures where a wider range of behaviors are more acceptable than in other cultures, where there might be more strict rules that govern behavior? (This second question is relevant to a discussion of "tight" and "loose" cultures; see the reference below.)
Our perceptions of what constitutes acceptable and inappropriate behavior are greatly influenced by culture.
The culture gives people a framework for comprehending and interpreting social norms, values, and expectations and directs their behavior in various contexts. The criteria for what constitute acceptable or unacceptable behavior vary considerably depending on the situation and the culture, and they are influenced by context and background.
For instance, being on time for appointments and meetings is highly regarded in some cultures, while arriving late is rude. However, in other cultures, arriving early might be regarded as rude and arriving a few minutes late might be more acceptable.
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Correct question:
How do you think culture shapes our view of acceptable and unacceptable behaviors? Do you think there are certain cultures where a wider range of behaviors are more acceptable than in other cultures, where there might be more strict rules that govern behavior?
If a DNA sample has %22 T (thymine) , what are the percentages of the other 3 bases?
Answer: In DNA, each base occurs in a complementary pair with another base: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Since the percentage of T in the sample is 22%, we know that the percentage of A, which pairs with T, is also 22%.
The total percentage of the four bases in DNA must add up to 100%, so we can use this information to find the percentages of the other two bases, C and G. Since A and T make up 44% of the sample, we subtract 44 from 100 to get the percentage of the remaining two bases:
100% - 44% = 56%
The remaining 56% of the sample must be divided evenly between C and G, since they always pair with each other. So we divide 56% by 2 to get the percentage of each base:
56% / 2 = 28%
Therefore, the percentages of the four bases in the DNA sample are:
Adenine (A): 22%
Thymine (T): 22%
Cytosine (C): 28%
Guanine (G): 28%
Explanation:
Using your understanding of photosynthesis, propose the most likely reason the disks have not risen in syringe a.
The phenomenon of disks rising in a syringe is a common experiment used to demonstrate the process of photosynthesis.
During photosynthesis, plants use light energy to convert carbon dioxide and water into glucose and oxygen. As a result of this process, oxygen is produced and bubbles are formed, causing the disks to rise to the surface of the solution.
If the disks have not risen in syringe A, it is likely that photosynthesis is not occurring. There could be several reasons for this:
1. Lack of light: Photosynthesis requires light as an energy source, so if there is not enough light available, the process will not occur. It is possible that the syringe is not placed in a well-lit area or that the light source used is not sufficient to drive photosynthesis.
2. Insufficient carbon dioxide: Carbon dioxide is a necessary component of photosynthesis, and without enough of it, the process cannot proceed. If the carbon dioxide concentration in the solution is too low, photosynthesis will not occur.
3. Lack of chlorophyll: Chlorophyll is the pigment that captures light energy during photosynthesis. If the plant material used in the experiment does not contain chlorophyll, such as if the leaves have been removed, then photosynthesis will not occur.
4. Damaged plant material: If the plant material used in the experiment is damaged, such as if the cells are ruptured, photosynthesis may not occur due to a loss of structure and function necessary for the process.
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Rock pocket mice species in New Mexico exist as mostly tan in color and easily
blend in with the limestone rocks and sand that cover the landscape of this region.
About a thousand years ago there was a volcanic eruption which created lava flows
on the surface which cooled and turned into a darker black rock color. The rock
pocket mice living on the black rocks needed an adaptation to survive against visual
predators like hawks and owls. Over multiple generations the population living
amongst the black lava flow were observed to change to a black-furred color. Which
statement below explains how this might have occurred?
Mice fur color only changes when exposed to environmental factors such as UV
radiation and pollutants.
Mice fur color cannot change, so they did not survive, rather a new species
migrated to this area.
The change of fur color within the population over time happened as a result of
The change of fur color within the population over time became black as a result of the lava flow and allowed the mice to survive
They were able to survive and reproduce more successfully than tan-furred mice, leading to a gradual increase in the black-furred population over time.
The statement that explains how the Rock pocket mice species in New Mexico turned black over time as a result of the lava flow and allowed them to survive is:
The change of fur color within the population over time became black as a result of the lava flow and allowed the mice to survive.What is natural selection?
Natural selection refers to the process by which organisms that are better suited to their environment survive and reproduce more successfully than organisms that are less suited to their environment.
This results in the gradual change of a species over time as advantageous traits become more common and disadvantageous traits become less common.
In the case of the Rock pocket mice in New Mexico, the black-furred mice were better suited to their environment on the black lava flow as they were less visible to visual predators like hawks and owls.
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Which eon of geologic time is represented by rocks containing abundant shelly fossils?.
The eon of geologic time that is represented by rocks containing abundant shelly fossils is the Phanerozoic eon. This eon began approximately 541 million years ago and is still ongoing.
The Phanerozoic eon is divided into three eras: the Paleozoic era, the Mesozoic era, and the Cenozoic era.
The Paleozoic era began around 541 million years ago and ended around 252 million years ago. During this era, there was a significant increase in the diversity of life, and shelly fossils were abundant in the rocks formed during this time.
The Mesozoic era followed, from 252 million years ago to 66 million years ago, during which the dinosaurs dominated the Earth. Shelly fossils were still abundant during this era, but there was also an increase in other types of fossils such as those of reptiles and mammals.
Finally, the Cenozoic era began around 66 million years ago and continues to the present day. This era is marked by the evolution of mammals, including humans, and shelly fossils are still present in the rocks formed during this time.
In conclusion, rocks containing abundant shelly fossils are representative of the Phanerozoic eon, specifically the Paleozoic and Mesozoic eras. This eon is characterized by the diversification of life on Earth and the abundance of shelly fossils is evidence of this.
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Help me please I’m cannot understand
Answer/explanation:
3.
A) A dominant allele is the allele that is more prominent and over rules the weaker/recessive allele.
B) a genotype is the genetic make up that is in a living organism. A phenotype is the physical traits that one has (ex. blue eyes, curly hair)
C) Heterozygous, hetero meaning different, means that it is a mix of two different alleles (ex. Bb). Homozygous means two of the same (ex. BB or bb).
4.
A) The genotype, the actual make up ends up being a mix of both parents (heterozygous). It is, Hh.
B) Usually in biology the capital letter is the more dominant allele/gene, therefore the phenotype (physical feature) should be the child having a widow's peak.
explanation: Since the dominant gene is the widow's peak then that will be the gene that shows up in the child's phenotype.
Hope this helps?!
Which statement best summarizes describes cell
theory?
O Living things can form from cells or other materials.
O All living things are made up of cells that can come
from non-living matter.
O Not all living things are made from cells, and some
animal cells come from plants.
O All living things are made up of cells, and each cell
comes from another living cell.
Answer:
all living organisms are composed of basic units called cells.
Define the Problem/Observation: Milk left out on counter by accident for two days spoiled before date.
Select one:
a.
4 - Demonstrates the ability to construct a clear and insightful problem statement with evidence of all relevant contextual factors.
b.
3 - Demonstrates the ability to construct a problem statement with evidence of most relevant contextual factors, and problem statement is adequately detailed.
c.
2 - Begins to demonstrate the ability to construct a problem statement with evidence of most relevant contextual factors, but problem statement is superficial.
d.
1 - Demonstrates a limited ability in identifying a problem statement or related contextual factors
The problem is that milk left out on the counter by accident for two days spoiled before its expiration date.
This problem must be addressed because it is important to keep food within a certain temperature range to prevent it from spoiling. Milk is a perishable food, so it is especially important that it is kept in a cool environment.
Additionally, the milk was left out for two days, which is significantly longer than the usual time between purchase and consumption. This further increases the risk of spoilage, as the milk was not stored in the proper conditions for a prolonged period of time.
In order to avoid this problem, people must be aware of the temperature in which food should be stored, as well as the amount of time it should be stored for. Furthermore, people should be mindful of how long food has been left out, and take steps to ensure that it is not left out for too long.
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6. Acorn → Squirrel → Crow → Coyote
1,000 kcal are available for the 1st trophic level, 100
kcal for the 2nd trophic level, 10 kcal for the 3rd
trophic level. How many kcal are available for the
tertiary consumer?
Fill in the organisms and energy amounts on the
pyramid to the right
There are 1 kcal available for the tertiary consumer, the Coyote.
In this food chain, the trophic levels are as follows:
1st Trophic Level (Producers) - Acorn with 1,000 kcal available
2nd Trophic Level (Primary Consumers) - Squirrel with 100 kcal available
3rd Trophic Level (Secondary Consumers) - Crow with 10 kcal available
4th Trophic Level (Tertiary Consumers) - Coyote
Since the question is asking for the amount of kcal available for the tertiary consumer (Coyote), we can see that it's the 4th trophic level.
Following the 10% rule, only 10% of the energy from the previous level is passed on to the next level. In this case, 10% of the 10 kcal from the Crow (3rd trophic level) will be available for the Coyote.
10% of 10 kcal = 1 kcal
So, there are 1 kcal available for the tertiary consumer, the Coyote.
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The lac repressor binds to what site within the lac operon?.
The lac repressor binds to the operator site within the lac operon. The lac operon is a cluster of genes in bacteria that are responsible for the metabolism of lactose.
The operon is composed of three structural genes, lacZ, lacY, and lacA, and a regulatory region that includes the promoter and operator. The lac repressor is a protein that binds to the operator site and prevents RNA polymerase from binding to the promoter, thereby inhibiting transcription of the structural genes.
When lactose is present, it binds to the repressor and changes its shape, causing it to release its grip on the operator, allowing RNA polymerase to bind to the promoter and transcribe the structural genes. The binding of the lac repressor to the operator site is critical for the regulation of the lac operon.
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The thread connecting the LAC (Limits of Acceptable Change) and VERP (Visitor Experience and Resource Protection) planning paradigms is the need to manage increasing visitation and related visitor impacts in wilderness areas.
Both planning paradigms were developed to help recreation planners and wilderness area managers address the challenges posed by growing visitor numbers.The LAC planning paradigm focuses on setting specific limits for visitor use and establishing management actions to maintain or restore desired conditions in the wilderness. It involves a systematic process of assessing visitor impacts and determining acceptable levels of change, based on ecological, social, and managerial factors. The goal is to strike a balance between visitor use and the preservation of wilderness resources and values.On the other hand,
VERP planning paradigm emphasizes managing visitor experiences while protecting the natural and cultural resources of wilderness areas. It aims to ensure that visitors have high-quality and sustainable experiences in the wilderness, while minimizing negative impacts on the environment and other visitors. VERP involves monitoring visitor use and impacts, developing strategies to manage visitor capacity, and implementing actions to protect resources and enhance visitor experiences.
In summary, the common thread between LAC and VERP planning paradigms is the recognition of the need to effectively manage increasing visitation and related impacts in wilderness areas. Both paradigms provide frameworks and tools to help recreation planners and wilderness area managers strike a balance between visitor use and the protection of natural and cultural resources.
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a very odd life form is found in a cave in kentucky. compared to all other biological systems, this critter has a different number of amino acids and a different number of nucleotides. in research to determine the number of nucleotides necessary to specify a single amino acid, proflavin was used to induce frameshift mutations. when one, two or three nucleotides were added to a nucleotide sequence, the resultant polypeptide chains were all similar to the original polypeptide chain. what does this suggest about the number of nucleotides that specify a single amino acid?
The fact that adding one, two, or three nucleotides to the nucleotide sequence did not alter the polypeptide chain's similarity to the original polypeptide chain suggests that the genetic code is degenerate or redundant.
In other words, different nucleotide sequences can specify the same amino acid, which is why a frameshift mutation caused by proflavin did not change the resulting polypeptide chain's similarity to the original.
Therefore, this suggests that the number of nucleotides necessary to specify a single amino acid is more than one, and likely to be three, which is the standard codon size in the genetic code.
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He ________ sends information either directly to the smell-processing areas in the cortex or indirectly to the cortex by way of the thalamus. olfactory bulb hypothalamus corpus callosum limbic system
The olfactory bulb sends information either directly to the smell-processing areas in the cortex or indirectly to the cortex by way of the thalamus. olfactory bulb hypothalamus corpus callosum limbic system.
The olfactory bulb is a part of the brain located in the front of the brain, just above the nasal cavity. It is responsible for processing and sending information related to smell to other parts of the brain, such as the cortex. The hypothalamus, corpus callosum, and limbic system are all also involved in the processing of smell information.
The hypothalamus is responsible for regulating basic physiological functions such as hunger, thirst, and body temperature, while the corpus callosum is responsible for allowing communication between the two hemispheres of the brain. The limbic system is involved in emotion, motivation, and memory, and plays a role in the processing of smell as well. Overall, the olfactory bulb and its associated brain regions play a crucial role in our ability to sense and interpret smells.
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Toad and Toadette just had their first little toadstool! Toad's family is known to be purebred dominant for red spots on their white cap. Everyone was shocked when Little Toad was born with a white cap with white spots instead of red. Toadette is very upset as she thinks the Mushroom Kingdom Hospital accidentally switched babies. Is this true? Did the hospital really switch babies? Choose either "yes" or "no" and defend your answer.
No, it is highly unlikely that the hospital accidentally switched babies. The reason why Little Toad was born with a white cap with white spots instead of red is because of a genetic phenomenon known as a recessive trait.
Toadette is likely carrying a recessive gene for white spots on the cap, which is only expressed when two copies of the gene are inherited, one from each parent. Since Toad has dominant red spot genes, he only passed down the red spot gene to his offspring.
However, Toadette could have passed down the recessive white spot gene, resulting in Little Toad's unique appearance. It is important to note that genetic variations and mutations are not uncommon and can result in different physical traits in offspring.
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if your mitochondrial dna was sequenced and compared to the sequence of mitochondrial dna isolated from your mother's maternal grandmother (the mother of your mother's mother) would you expect to see a significant match to yours and why?
Yes, I would expect to see a significant match between my mitochondrial DNA and that of my mother's maternal grandmother because mitochondrial DNA is passed down maternally, which means that all individuals in the maternal line will have the same mitochondrial DNA sequence.
Mitochondrial DNA is unique in that it is inherited only from the mother, so it provides a direct link to maternal ancestry. This type of DNA is present in mitochondria, which are organelles within cells that generate energy.
Unlike nuclear DNA, mitochondrial DNA does not undergo recombination during reproduction, which means that it is transmitted intact from mother to offspring. As a result, all individuals in the maternal line will have the same mitochondrial DNA sequence, with the exception of any rare mutations that may have occurred during transmission.
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1. during contraction of a muscle, calcium ions bind to ______ which moves _______ out of the way. this now uncovers binding sites on the __________ myofilament.
During contraction of a muscle, calcium ions bind to troponin, which moves tropomyosin out of the way. This now uncovers binding sites on the actin myofilament.
Contraction of a muscle occurs when the actin and myosin myofilaments slide past each other, causing the sarcomere (the basic unit of a muscle) to shorten.
Calcium ions play a crucial role in this process by binding to the regulatory protein troponin, which is located on the thin actin myofilament. This binding causes a conformational change in the troponin-tropomyosin complex, which moves tropomyosin out of the way and uncovers the binding sites on the actin myofilament.
With the binding sites now available, myosin heads can attach to actin, forming cross-bridges. The cross-bridges then undergo a series of conformational changes that result in the sliding of the actin myofilament past the myosin myofilament, shortening the sarcomere and causing muscle contraction.
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Question 7 (2 points)
phosphate)
what does the following represent?
nitrogenous
base
5- carbon
sugar
nucleotide
dna
nitrogen base
rna
5-carbon sugar is a type of sugar that contains five carbon atoms in its molecular structure.
In the context of DNA and RNA, the 5-carbon sugar is an important component of the nucleotides that make up these molecules. In DNA, the 5-carbon sugar is called deoxyribose, while in RNA it is called ribose. The nitrogenous base, on the other hand, is a type of molecule that contains nitrogen and forms the building blocks of nucleic acids, such as DNA and RNA.
There are four types of nitrogenous bases in DNA: adenine, guanine, cytosine, and thymine. In RNA, uracil replaces thymine. The pairing of the nitrogenous bases is a key feature of DNA and RNA structure and function.
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Full Question: What is A 5 carbon sugar A nitrogenous base?
A rather large population of Ecology teachers has 396 individuals with poor vision and 557 with good vision individuals. Assume that poor vision is totally recessive. Please calculate the following:
The allele frequencies of each allele.
The expected genotype frequencies.
The number of heterozygous individuals that you would predict to be in this population.
Conditions happen to be really good this year for breeding and next year there are 1,245 young "potential" Biology instructors. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to have poor vision and how many with good vision?
1) The allele frequencies are p = 0.356 for the dominant allele and q = 0.644 for the recessive allele
2) The expected genotype frequencies are: 12.7% homozygous dominant, 45.9% heterozygous, and 41.5% homozygous recessive.
3) The number of heterozygous individuals (pq) are 953
4) We would expect 517 individuals with poor vision, 158 individuals with good vision, and 572 heterozygous individuals in the next generation
1) To calculate the allele frequencies, we can use the Hardy-Weinberg equation:
p² + 2pq + q² = 1
where p is the frequency of the dominant allele (associated with good vision) and q is the frequency of the recessive allele (associated with poor vision).
Since poor vision is totally recessive, q² represents the frequency of individuals with poor vision
396 ÷ 953 = 0.415.
q = √(0.415) = 0.644.
Since p + q = 1, p = 1 - q = 0.356.
2) The frequency of the homozygous dominant genotype is
p² = (0.356)²
= 0.127
= 12.7%
The frequency of the homozygous recessive genotype is
q² = (0.644)²
= 0.415
= 41.5%
The frequency of the heterozygous genotype is
2pq = 2 × (0.356) × (0.644)
= 0.459
= 45.9%
3) The number of heterozygous individuals can be predicted using the frequency of the heterozygous genotype and the total number of individuals. The number of individuals in the population is
396 + 557 = 953.
4) The total number of individuals in the next generation is 1,245. Since poor vision is recessive, we can use the q² frequency to predict the number of individuals with poor vision:
q² x 1,245
= 0.415 x 1,245
= 517.
Similarly, we can use the p² frequency to predict the number of individuals with good vision:
p² x 1,245
= 0.127 x 1,245
= 158.
Finally, we can use the 2pq frequency to predict the number of heterozygous individuals:
2pq x 1,245
= 0.459 x 1,245
= 572.
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The complete question is:
A rather large population of Ecology teachers has 396 individuals with poor vision and 557 with good vision individuals. Assume that poor vision is totally recessive. Please calculate the following:
1) The allele frequencies of each allele.
2) The expected genotype frequencies.
3) The number of heterozygous individuals that you would predict to be in this population.
4) Conditions happen to be really good this year for breeding and next year there are 1,245 young "potential" Biology instructors. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to have poor vision and how many with good vision?
Immersing a red blood cell into a hypotonic solution would cause water to ______.
Group of answer choices
diffuse into the cell
diffuse out of the cell
no net movement
move by phagocytosis
Immersing a red blood cell into a hypotonic solution would cause water to diffuse into the cell.
A hypotonic solution has a lower solute concentration compared to the cytoplasm of the red blood cell.
Due to the principle of osmosis, water molecules tend to move from an area of lower solute concentration (the hypotonic solution) to an area of higher solute concentration (the cytoplasm of the cell).
As a result, when a red blood cell is placed in a hypotonic solution, water molecules from the surrounding solution will move across the cell membrane and into the cell.
This process occurs to equalize the concentration of solutes inside and outside the cell, resulting in an increase in the volume of the cell.
If the influx of water continues excessively, the red blood cell may undergo osmotic lysis, causing it to burst. However, in a controlled hypotonic solution, the cell will undergo a process called turgor, where it swells but maintains its integrity.
In summary, immersion of a red blood cell in a hypotonic solution would cause water to diffuse into the cell due to the osmotic pressure gradient.
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In cats the trait for hair length is controlled by gene S, where the dominant allele(S) results in short hair and recessives have long hair. The W gene is known as the "masking" gene because a cat that has a dominant W allele in its genotype will have an all-white coat due to a lack of melanin in its skin. Cats with a ww genotype can have a coat of any color, depending on the inheritance of other genes that determine coat color.
A male with long hair and a white coat is crossed with a female cat with short hair and a white coat. The owner of the cats has heard about the masking gene and believes that the cross will produce a litter of all-white kittens, some with short hair and some with long hair.
(a) is the owner's prediction accurate? give evidence to support your response.
(b) Based on the given information, determine all of the possible genotypes of the kittens in the litter
(a) The owner's prediction is not accurate.
(b) The possible genotypes of the kittens in the litter are SSWW, SSWw, and SSww.
A. The W gene is a dominant gene that masks the expression of other genes, such as the S gene. Therefore, even if both parents have the same genotype for the S gene, the presence of a dominant W gene will result in all of the kittens having a white coat. Therefore, there will not be any kittens with a long-haired coat in the litter, since the W gene masks the expression of the S gene.
B. The SSWW genotype would result in all of the kittens having short hair and a white coat. The SSWw genotype would result in some kittens having short hair and a white coat and some kittens having long hair and a white coat.
The SSww genotype would result in all of the kittens having long hair and a white coat. Therefore, it is possible that the litter could contain any combination of the three genotypes.
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What is the most likely result of damage to the thlaykoid membranes in a
plant?
A. A decrease in glucose production
B. An increase in ATP production
C. An increase in photosynthesis
D. A decrease in exocytosis
SUBMIT
Answer:
A. decrease in glucose production
Explanation:
The damage would affect the flow of electrons through the mitochondria. The damage to the thylakoid would affect the splitting of the water molecule.
I NEED HELP ASAP. What do scientific models predict will happen to earth’s ocean if current trends continue unmitigated?
A. Sea level will rise between 2. 5 and 6. 5 Feet
B. The acidity of ocean water will remain near a neutral pH
C. Coral bleaching will stop, and coral reefs will slowly recover
D. Polar ice will continue to melt and referees in a natural cycle
According to scientific models, if current trends continue unmitigated, sea level will rise between 2.5 and 6.5 feet. The answer is A
This rise in sea level is due to the melting of glaciers and ice sheets, which is a direct result of global warming caused by human activities such as burning fossil fuels and deforestation. The rise in sea level will have a significant impact on coastal regions, leading to increased flooding and erosion.
In addition to sea level rise, the acidity of ocean water is also expected to increase due to the absorption of carbon dioxide from the atmosphere. This can have a negative impact on marine life, especially on organisms that use calcium carbonate to build their shells and skeletons.
Coral bleaching is also expected to continue, as ocean temperatures continue to rise. This can lead to the death of coral reefs, which provide habitats for many species of marine life.
Finally, the melting of polar ice is also expected to continue, which can lead to further sea level rise and changes in ocean currents, weather patterns, and marine ecosystems. Hence option A is the answer
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Synthetic Materials
Answers questions bellow
Polymers are are long chains of molecules that are made up of repeating units called monomers.
2. The most common synthetic fibre is plastic.
3.Numerous aspects of our society face challenges as a result of the rising rate of production of plastic. It is causing problems with waste and pollution, affecting our health, and posing a threat to our oceans and wildlife.
4. Synthetic fibres are of four types, namely: Rayon, Nylon., Polyester, Acrylic.
5. Fashion uses synthetic and chemically made fibers like polyester, nylon, and acrylic, as well as semi-synthetic cellulosic fibers like viscose, rayon, modal, and lyocell.
The absolute most outstanding benefit of manufactured strands is their minimal expense contrasted with different sorts of materials.
Four uses for synthetic fibers?The aerospace, apparel, architecture and construction, automotive and transportation, chemical processing, electrical and electronic, filtration, marine, medical, and welding industries all make use of synthetic fibers and fabrics.
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What would happen to a bacterial cell if its protective covering was destroyed? it would be better protected from the outside environment. it would be able to convert nitrogen to a usable form for plants. it would be harmed by chemicals in the environment. it would reproduce more slowly.
Without its protective covering, a bacterial cell would be exposed to the outside environment and become vulnerable to any toxins and pollutants it may contain.
This could cause harmful changes to the cell’s genetic material and metabolic processes, leading to reduced or halted reproduction, or even death. The cell would also be unable to convert nitrogen to a usable form for plants, as it relies on its protective covering to keep out certain molecules that could be harmful to it.
Without the protective covering, the cell would also be unable to regulate its temperature, making it more susceptible to extreme temperatures that could damage its DNA or other components. All in all, the destruction of a bacterial cell’s protective covering would have a severely negative impact on its ability to survive and thrive, leading to its eventual demise.
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What is found inside of ice core samples that scientists use to determine the composition of the atmosphere at the time the ice was formed?
question 14 options:
microbes
dust particles
ions
gas bubbles
Inside ice core samples, scientists use gas bubbles to determine the composition of the atmosphere at the time the ice was formed.
These gas bubbles contain trapped air from the past, providing valuable information about the historical atmosphere.
Ice core sampling involves drilling into ice sheets or glaciers to extract long cylindrical sections of ice cores. These ice cores can reach depths of several kilometers and contain layers of ice representing different periods in history, often spanning thousands or even hundreds of thousands of years.
The gas bubbles present in these ice cores are small pockets of air that were trapped within the ice at the time of its formation. These bubbles preserve a snapshot of the atmospheric composition, capturing the gases present in the Earth's atmosphere during that particular period.
The composition of these gas bubbles can be analyzed to reveal the past concentrations of various atmospheric components.
To extract the gases from the ice cores, scientists use a variety of techniques, including melting, crushing, or sublimating the ice samples.
Once the gases are released, they can be analyzed using specialized instruments such as gas chromatographs or mass spectrometers.
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1. describe how radio telescopes are used to explore space.
2. how are radio waves used on earth?
3. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals?)
sidenote: sorry if this is in wrong category, there wasn't one for general science
Radio telescopes are used to explore space by detecting and analyzing radio waves emitted by celestial objects, such as stars, galaxies, and planets. These telescopes consist of large parabolic dish antennas that collect radio waves from space and focus them onto a receiver. The receiver amplifies the weak signals and converts them into electrical signals, which are then analyzed by computer programs to generate images and spectra of the celestial objects.
Radio waves are used on Earth for a variety of purposes, including communication, navigation, and scientific research. Radio waves are used in radio and television broadcasting, cellular communication, satellite communication, and radar systems. Radio waves are also used in scientific research, such as in radio astronomy, which uses radio telescopes to study the universe.
Radio telescopes convert radio waves to electrical (digital) signals for analysis because digital signals offer several advantages over analog signals. Digital signals can be processed and manipulated using computer algorithms, which allows for more precise measurements and analysis. Digital signals can also be stored and transmitted more efficiently than analog signals, which can be subject to noise and distortion.
Additionally, digital signals can be easily converted to other formats and can be analyzed and compared with other digital data sets.
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Know Mendel's three principles
Answer:
Law of Dominance and Uniformity
Law of Segregation
Law of Independent Assortment
What would the three amino acids be for this dna template: tacgatacc
leu-met-trp
met-leu-stop
trp-leu met
o met-leu trp
The three amino acids for this DNA template are Methionine, Leucine, and Tryptophan i.e. met-leu-stop.
To provide you with the correct amino acids for the given DNA template, I first need to identify the correct DNA sequence. It appears that there are some irrelevant terms in the provided sequence. Let's clean it up:
Corrected DNA sequence: TAC GAT ACC
Now, we can determine the amino acids by translating the DNA sequence into its corresponding mRNA sequence and then identifying the appropriate amino acids.
mRNA sequence: AUG CUA UGG
Amino acids: Methionine (Met) - Leucine (Leu) - Tryptophan (Trp)
So, the three amino acids for this DNA template are Methionine, Leucine, and Tryptophan.
It's important to note that the process of translation involves reading the mRNA sequence in sets of three nucleotides called codons. Each codon corresponds to a specific amino acid, as determined by the genetic code.
The start codon (AUG) initiates the translation process, and the subsequent codons code for specific amino acids until a stop codon is reached, indicating the end of protein synthesis.
So, therefore, the three amino acids for this DNA template are Methionine, Leucine, and Tryptophan i.e. met-leu-stop.
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What would the three amino acids be for this DNA template (tacgatacc)?
leu-met-trp
met-leu-stop
trp-leu met
o met-leu trp
What did most people speculate at first was the cause of blue skin?
At first, many people speculated that the cause of blue skin was a form of genetic mutation. This was primarily due to the fact that blue skin is a rare condition, and is not often passed down through generations.
It was assumed that the mutation was caused by a change in a gene or a combination of genes. This speculation was further reinforced by the fact that blue skin was often seen in people who had other physical abnormalities, such as webbed toes or fingers.
Additionally, some speculated that the blue hue of the skin was caused by a build-up of toxins in the body, as this could explain why the condition was not seen in all members of a family. Ultimately, the cause of blue skin remains a mystery, but the initial speculation that it was caused by a genetic mutation was based on the rarity of the condition and other associated physical abnormalities.
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Five major function of epithelium in the body and give example
Epithelium serves several important functions in the body, including protection, absorption, secretion, sensation, and transportation.
The epithelium is a tissue that lines the surfaces of the body and forms barriers between different environments. It has several important functions, including:
Protection: Epithelial tissue protects underlying tissues from physical damage, pathogens, and other harmful substances. For example, the skin is an epithelial tissue that protects the body from injury and infection.
Absorption: Some epithelial tissues are specialized for absorption of nutrients, water, and other substances. For example, the lining of the small intestine is composed of absorptive epithelial cells that absorb nutrients from digested food.
Secretion: Epithelial tissues can also secrete substances, such as mucus, hormones, and enzymes. For example, the epithelial cells of the stomach secrete digestive enzymes and hydrochloric acid.
Sensation: Epithelial tissues can contain sensory receptors that respond to stimuli such as touch, pressure, and temperature. For example, the skin contains sensory receptors that enable us to feel pressure, heat, and pain.
Transportation: Epithelial tissues can transport substances across their surfaces. For example, the epithelial cells lining the respiratory tract transport oxygen and carbon dioxide across their surfaces.
The functions of epithelial tissues are critical for maintaining the structure and function of the body. Dysfunction or damage to epithelial tissues can lead to a range of health problems.
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Need help by 04/18/2021
Part E: Write Your Paper
Write your research using your outline and the research you’ve collected. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion. Remember that you must add a works cited page at the end of your paper to give credit to your sources.
When you have completed your paper, submit it to your teacher along with this activity
Writing a research paper requires careful planning, thorough research, and strong writing skills. By following a well-organized outline and carefully citing all sources, a successful research paper can be achieved.
In order to write an effective research paper, it is important to follow a well-organized outline and to thoroughly research the topic. The first step in writing a research paper is to create an outline, which will serve as a roadmap for the paper. The outline should include a thesis statement, the main points or arguments, and supporting evidence or research.
Once the outline is complete, it is time to begin researching the topic. This can be done by conducting a literature review, reviewing academic journals, and gathering data from reputable sources. It is important to take detailed notes during the research process and to keep track of all sources for proper citation.
After the research is complete, it is time to begin writing the paper. It is important to start with a strong introduction that grabs the reader’s attention and clearly states the thesis statement. Each main point should be addressed in a separate paragraph, and supporting evidence or research should be used to back up each argument.
As the paper is being written, it is important to proofread and revise the writing to ensure that there are no errors in grammar, spelling, logic, or cohesion. A well-written paper should flow smoothly and be easy to read.
Finally, a works cited page should be added to the end of the paper to give credit to all sources used in the research. This is important to avoid plagiarism and to maintain academic integrity.
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Complete Question:
Write your research using your outline and the research you’ve collected. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion. Remember that you must add a works cited page at the end of your paper to give credit to your sources.