Answers
An ethical concern with this experiment is the possibility that the genetically modified bacteria may be released into the environment and spread antibiotic resistance to other bacteria.
What is antibiotic ?Antibiotics are a type of medication used to treat bacterial infections. They work by stopping the growth of bacteria, allowing the body’s own immune system to fight the infection. Antibiotics are typically prescribed by a doctor and are taken orally in pill or liquid form, or administered intravenously. Different classes of antibiotics target different types of bacteria, so the doctor will usually take a sample from the infected area and send it to a laboratory to determine which antibiotic will be the most effective. Antibiotics are not effective against viruses, so it’s important to get a proper diagnosis before starting any antibiotic treatment.
Antibiotic resistance is a major public health issue, and any experiment that risks the spread of antibiotic resistance should be taken seriously. The researchers should take steps to ensure that the genetically modified bacteria are contained and not released into the environment, such as securely sealing the petri dish and disposing of it properly.
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Related Questions
After collecting the data, the teacher provided a sample of maltose, a disaccharide. Predict how the bar graph would be amended once the maltose trial is run.
Answers
If the experiment was designed to test the presence or absence of specific types of sugar, the new bar could also provide additional information about the composition of the sample.
What is Maltose?
Maltose is a disaccharide composed of two glucose molecules linked together by an alpha-1,4-glycosidic bond. It is a type of sugar that is produced by the breakdown of starch and is commonly found in grains such as barley and malted barley. Maltose has a sweet taste but is not as sweet as table sugar (sucrose). It is often used as a sweetener in brewing and baking industries, where it is produced by the enzymatic hydrolysis of starch. Maltose is also a source of energy for the human body and is produced naturally during the digestion of starchy foods.
Without knowing the specific details of the experiment, it is difficult to predict exactly how the bar graph would be amended once the maltose trial is run. However, since maltose is a type of disaccharide, which is a type of sugar, it is likely that the bar graph would be updated to include a new bar that represents the amount of maltose present in the sample. Depending on the results of the trial, this new bar could be higher or lower than the bars that represent other types of sugar, which would reflect the relative abundance of maltose in the sample compared to other types of sugars.
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What parts develop from the embryonic structure pharyngeal Slits?
back, abdominal, arm, and leg muscles
the heart and other parts of the circulatory system
post an*l tail and other muscular parts
head structures such as gills or ear canals
Answers
Pharyngeal slits only appear in mammals and birds during the embryonic stage of development, which is true of the majority of terrestrial animals.he jaw & inner ear bones in these animals emerge from the pharyngeal slits.
What do human pharyngeal slits develop into?Pharyngeal slits for food filtering evolved to gills for oxygen extraction 570 years ago, and eventually into the upper and lower jaw & pharynx, which includes the thyroid gland, mouth, larynx (voice box), and other glands and muscle between the.
The pharynx is where anything travels.By allowing water from of the mouth to leave via the slits, pharyngeal slits aid in the breathing and feeding of fish and primitive chordates.Although organisms can filter this water for food, fish gills evolved to be attached to these slits.
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1. Which of these happens during exhalation? Air moves from the environment to the alveoli. The intercostal muscles expand. The space inside the rib cage increases. The diaphragm returns to a dome shape.
Answers
When air is transferred from the environment to the alveoli, the diaphragm assumes its original dome shape.
What occurs when you exhale?Breathing is the second stage, often known as expiration. As the lungs expel, the diaphragm relaxes, resulting in a decrease in volume and an increase in pressure in the thoracic cavity. Lungs constrict as a result, expelling air.
What transpires when you exhale in the alveoli?Alveoli in the lungs' alveoli exchange oxygen and carbon dioxide with the blood as we breathe in and out. The alveoli, blood, and tissues all over the body are how oxygen enters the body after being inhaled from the air.
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this is a threatened species that is in high risk of becoming endangered in wild
Vulnerable
Species of least concern
Endangered
Critically endangered
Answers
Vulnerable: this is a threatened species that is in high risk of becoming endangered in wild
What does it mean to be vulnerable?Vulnerable is a threatened species that is in high risk of becoming endangered in the wild. Species of Least Concern are those that are not currently considered threatened, whereas Endangered and Critically Endangered species are at higher risk of extinction than vulnerable species.
When in a vulnerable state, it means that they can easily be rendered extinct by other species.
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A month after your accident with the infected hand, your physician recommends getting a flu vaccine to protect you during the upcoming flu season. You take her advice and wonder how the vaccine affects your immune system.
Answers
The influenza vaccine boosts immune system production of antibodies that can identify and combat the influenza virus, protecting against the illness.
What is the immune system?Your child's immune system defends their body from external intruders. These include toxins, bacteria, viruses, fungus, and other types of germs. (chemicals made by microbes). The various tissues, cells, and proteins that make up the immune system cooperate with one another.
What causes a weak immune system?Additionally, unhealthy eating habits, alcoholism, and smoking can impair your immune system. AIDS. An acquired viral illness called HIV, which results in AIDS, kills crucial white blood cell populations and impairs the immune system. People with HIV/AIDS develop severe infections that the majority of people can fend off.
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Sodium is pushed into the cell by electrostatic and _ pressures
-the answer is 17 letters long
Answers
Osmotic Pressure is your answer.
Let me know if this helped! :)
A species of plant typically requires plenty of moisture and mild temperatures.It is smaller when it is grown in very hot, dry conditions. The plant grows to a smaller size because the environmental conditions affect the development of its water-conducting cells. Which statement explains why the plant is smaller?
Answers
The correct statement that explains why the plant is smaller when grown in hot, dry conditions is: C. The water-conducting cells in the plant are smaller.
What is plant tissues about?Plants have specialized tissues called xylem and phloem, which are responsible for transporting water, nutrients, and other substances throughout the plant. Xylem is a type of tissue that conducts water and minerals from the roots to the rest of the plant, while phloem transports sugars and other organic compounds from the leaves to the other parts of the plant.
Therefore, In the given scenario, the plant requires plenty of moisture to develop properly, but when it is grown in hot, dry conditions, it may not receive enough water. This is because the plant requires plenty of moisture to develop properly, and hot, dry conditions can hinder the development of its water-conducting cells. These cells are responsible for transporting water and nutrients throughout the plant, and if they are smaller, the plant may not be able to receive enough water to grow to its full size
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see text below
A species of plant typically requires plenty of moisture and mild temperatures.It is smaller when it is grown in very hot, dry conditions. The plant grows to a smaller size because the environmental conditions affect the development of its water-conducting cells.
Which statement explains why the plant is smaller?
A. All of the cells that make up the plant are smaller.
B. More water-conducting cells are formed by cell division.
C. The water-conducting cells in the plant are smaller.
D. Fewer water-conducting cells are formed by differentiation.
PREVIOUS
SUBMIT
Directions: Circle the words that correctly complete the sentences.
1. When your breathe in through your nose, the air first goes into the
(nostrils, cilia) and then on to the (respiratory, nasal) passages.
2. The (olfactory, receptor) cells change smells into electrical signals
which travel through the (auditory, olfactory) nerve to the brain.
3. In your nasal passages, you will see a sticky substance called
(saliva, mucus) and little hairs called (cilia, ducts).
4. There are almost 9,000 (taste buds, cilia) on your tongue.
5. The (mucus, saliva), or liquid, in your mouth helps your taste buds
work better.
6. On the front tip of the tongue, you taste things that are (sweet, bitter).
7. The back of the tongue is where things that are (sour, bitter) react with
your taste buds.
Answers
The human nose is a complex organ that is responsible for detecting and processing smells. It is located in the center of the face, above the mouth and between the eyes. The nose is made up of two nostrils, which are the openings through which air enters the nose.
The tongue is a muscular organ in the mouth. The mucosa, a pink, wet tissue, covers the tongue. The tongue's rough appearance is caused by little bumps called papillae. The papillae's surfaces are covered in thousands of taste buds. Taste buds are assemblages of cells that resemble nerves and are connected to nerves that enter the brain.
When you breathe in through your nose, the air first goes into the nostrils and then on to the nasal passages.The olfactory cells change smells into electrical signals which travel through the olfactory nerve to the brain.In your nasal passages, you will see a sticky substance called mucus and little hairs called cilia.There are almost 9,000 taste buds on your tongue.The saliva, or liquid, in your mouth helps your taste buds work better.On the front tip of the tongue, you taste things that are sweet.The back of the tongue is where things that are sour react with your taste buds.Learn more about the human nose here https://brainly.com/question/4707609
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The myelin sheath is made from
axons
terminal buttons
somas
glial cells
Answers
Answer:
The myelin sheath is made from glial cells. Specifically, it is made from two types of glial cells: oligodendrocytes in the central nervous system (CNS) and Schwann cells in the peripheral nervous system (PNS). These cells wrap around the axons of neurons to create the myelin sheath, which acts as an insulator and helps to speed up the transmission of nerve impulses.
Explanation:
The myelin sheath, a crucial component for rapid and efficient signal transmission in the nervous system, is composed of glial cells, not axons, terminal buttons, or somas.
Explanation:The myelin sheath is a fatty insulating layer that surrounds the axons of many nerve cells. It's not made of axons, terminal buttons, or somas, but rather, it's primarily composed of glial cells. Glial cells wrap around the axon of a neuron, creating a myelin sheath that accelerates the speed at which electrical signals, or impulses, pass along the axon. This myelination process is crucial for efficient and rapid transmission of signals across the nervous system. A neuron's terminal buttons, on the other hand, are located at the ends of the axon and are involved in releasing neurotransmitters, facilitating communication with other neurons.
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The "slash and burn" method of agriculture refers to the process of cutting and
burning forests in order to provide land for herding cattle or farming. This practice is
used most commonly in developing nations where populations use the land for
farming in order to survive. The "slash and burn" process has major ecological
consequences because it...
O Prevents natural medications in the area from being discovered that could one day save lives
O Blocks out sunlight for several weeks with all of the smoke in the sky
O Increases the human population in the surrounding area
O Contributes to global warming as it adds carbon dioxide to the atmosphere
Answers
Answer:I think it’s “contributes to global warming as it adds carbon dioxide to the atmosphere”
recreate the sequence that occurs in the carbon cycle beginning with carbon dioxide gas
(put them in order)
combustion, atmosphere, soil organic matter, fossil fuel, plant biomass
Answers
Answer:
Explanation:
The sequence that occurs in the carbon cycle beginning with carbon dioxide gas is:
Carbon dioxide gas is absorbed by plants during photosynthesis.
Plants use carbon dioxide to produce glucose, releasing oxygen as a byproduct.
Animals eat plants, taking in the stored carbon in the form of glucose and other carbohydrates.
Carbon is released back into the atmosphere through the respiration of plants and animals.
When plants and animals die, decomposition by bacteria and fungi returns carbon to the soil.
Over millions of years, organic matter in the soil can be compressed and heated, forming fossil fuels like coal, oil, and natural gas.
Burning fossil fuels releases carbon dioxide and other greenhouse gases into the atmosphere, contributing to global warming and climate change.
Carbon dioxide is also absorbed by oceans and other bodies of water, where it can contribute to ocean acidification.
Answer:
Here is the answer. Hope this helped.
The central Atlantic Ocean has the highest salinity levels of any open ocean on Earth. Which of these BEST explains why the salinity is so high?
Group of answer choices
The rate of evaporation is low, and the rate of rainfall is low.
The rate of evaporation is high, and the rate of rainfall is low.
The rate of evaporation is low, and the rate of rainfall is high.
The rate of evaporation is high, and the rate of rainfall is high
Answers
Answer:
option 2 The salinity is so high, because the rate of evaporation is high, and the rate of rainfall is low.
Explanation:
Since the rate of evaporation is high the water evaporates in the form of vapours and it will not carry salt with it.
And while the rainfall that is occurring in that place is less than the rate of evaporation.
meaning there will not be enough water to dilute the salinity meaning there will be alot more salinity in that ocean.
Coal is made from decomposed land plants. Coal has been found in the Arctic. The coal came from forests that grew in
the Arctic in the distant past. Today, the Arctic is too cold to support tree life.
What does the existence of arctic coal tell scientists?
A Forests will return to the Arctic in the future.
B The Arctic was warmer at some time in the past.
Ancient forest plants could survive very cold temperatures.
D) Past arctic soils lacked the nutrients needed for plant growth.
Answers
Answer:
The answer is B
Explanation: PLEASE MARK AS BRAINLYIST :'(
Answer: B is the answer
Explanation: K12
Which is a difference between the Paleozoic and Mesozoic era?
Answers
Answer:
The Paleozoic and Mesozoic eras are different because during the Paleozoic era, life evolved from simple organisms to complex animals like fish and amphibians, and land plants emerged. The Mesozoic era was dominated by reptiles like dinosaurs and pterosaurs, with the appearance of small mammals. The end of the Paleozoic era was marked by a mass extinction event that wiped out many species, and the Mesozoic era ended with the extinction of the non-avian dinosaurs.
Help me please (\-/)
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Answers
Imagine you are running an advice column for the school newspaper. How would you respond to the following question?
"Lately, my friends have been asking if they can buy my prescribed medication for attention deficit hyperactivity disorder (ADHD). I know it's wrong, but I want to keep my friends. I don’t know what to do. HELP!"
Answers
Remember, your health and well-being should always come first, and it is okay to say no to situations that may compromise your safety or well-being.
What is ADHD?
ADHD stands for Attention Deficit Hyperactivity Disorder, which is a neurodevelopmental disorder that affects an individual's ability to pay attention, control impulsive behavior, and manage hyperactivity.
Individuals with ADHD may experience symptoms such as difficulty concentrating on tasks, being easily distracted, forgetfulness, inability to follow through on tasks, and impulsiveness. They may also have difficulty with organization and time management.
First and foremost, it is important to recognize that it is illegal to sell or distribute prescription medication to anyone else, regardless of whether they are a friend or not. Not only is it illegal, but it can also be dangerous and potentially harmful to the person taking the medication without a proper diagnosis and prescription.
It can be difficult to say no to friends, but it is important to prioritize your own health and well-being, as well as the safety of others. If your friends are pressuring you to give them your medication, it may be helpful to have an honest conversation with them about the potential risks and legal consequences of taking prescription medication without a proper diagnosis and prescription.
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When two large air masses meet, what forms?
Answers
Answer:
Formation of a Weather front.
Explanation:
The formation of a weather front can occur when two huge air masses collide. A weather front is a zone of difference in temperature, humidity, and density between two air masses.
The collision between these air masses leads them to rise and cool, which can lead to the production of clouds and precipitation. The sort of front that forms is determined by the properties of the air masses involved, such as temperature and humidity.
When a colder, denser air mass displaces a warmer air mass, it causes thunderstorms and heavy rain. Warm fronts, on the other hand, occur when a warmer air mass overtakes a cooler air mass, resulting in consistent rainfall over a longer period of time.
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You will use Punnett squares to predict the probability that two parents of your species will pass a particular trait to their offspring. Each parent has two alleles for a particular gene, one on each homologous chromosome.
To prepare to make the Punnett squares, write down the genotypes of the parents for the three traits you’ll be predicting.
Example:
Mother: YyIRiPF
Father: YyIWiPF
Answers
You prepare Punnett squares to predict the probability of inheritance for the given traits, based on the genotypes of the parents provided. However, since the specific traits of the species are not mentioned, let's use some hypothetical traits for demonstration purposes.
Define the term traits.
Traits are characteristics that can be observed or measured in an organism, such as physical features, behaviors, or abilities. These traits are determined by the genetic information (DNA) inherited from the parents and influenced by environmental factors. Traits can be either visible or non-visible, and they can be passed down from one generation to another through the process of reproduction. Some examples of traits include eye color, height, hair texture, intelligence, and susceptibility to certain diseases. The study of traits is an essential part of genetics, as it helps in understanding how genes are transmitted and how they influence the development and functioning of organisms.
The three traits we are predicting are:
Trait 1: Eye color (Brown, B; Blue, b)
Trait 2: Hair color (Black, H; Blonde, h)
Trait 3: Nose shape (Pointed, N; Round, n)
The given genotypes of the parents are:
Mother: YyIRiPF
Father: YyIWiPF
However, the letters in the genotypes do not match the traits.
So, the letters represent the following alleles:
Y - Brown eyes
y - Blue eyes
I - Black hair
R - Pointed nose
i - Blonde hair
P - Round nose
F - Unknown trait
Therefore, the genotypes of the parents for the three traits can be rewritten as:
Mother: BbyyRrPp
Father: BbyyIiPp
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An indicator is a substance that changes color in the presence of an acid or base.
Answers
The statement 'An indicator is a substance that changes color in the presence of an acid or base is true.
What is an indicator of pH in a solution?An indicator of pH in a solution is any type of chemical substance used in the lab to show the acid or acid pH in its presence such as for example phenolphthalein, methyl red, or also the bromothymol blue.
Therefore, with this data, we can see that a pH indicator may be very useful to know the acid base proportion in a given solution.
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All substances can absorb a finite amount of energy. When the water in an area of ocean has absorbed all the energy it can hold, what will most likely happen?
A. The extra energy will cause the water to begin condensing.
B. The extra energy will cause the water to begin evaporating.
C. The extra energy will cause the water to precipitate.
D. The extra energy will cause the water to transpire.
Answers
Answer:
B. The extra energy will cause the water to begin evaporating.
The graph above shows the average trend in C levels over the last century 1/3 of the sea level rise can be contributed to the thermal expansion of the ocean water as a result of the increasing ocean temperatures other than the thermal expansion of ocean water what is the other factor that has contributed to the 2/3 of the average sea level rise that we have seen
Answers
Based on the information given, we can deduce that the other factor contributing to the 2/3 of the average sea level rise
Define sea level ?
Sea level refers to the average height of the ocean's surface in relation to a specific point on land, such as a particular coast or beach. It is typically measured as the average height of the ocean's surface over a specific period of time, such as a year or a decade.
Sea level can vary over time due to factors such as tides, currents, and storms.
Based on the information given, we can deduce that the other factor contributing to the 2/3 of the average sea level rise, in addition to thermal expansion of ocean water, is the melting of land-based ice sheets and glaciers.
As temperatures have risen over the last century, ice sheets and glaciers in places like Greenland and Antarctica have melted, adding more water to the oceans and causing sea levels to rise.
This is a significant concern as continued warming of the planet could lead to more ice melt and even higher sea levels, with potential impacts on coastal communities and ecosystems.
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Which of the following processes does not take place during cellular respiration? (5 points) a Simple sugar breaks down. b Carbon dioxide is released. c Hydrogen of water is separated from oxygen. d Chemical energy stored in food is utilized by the cell.
Answers
Answer:
C
Explanation:
The process described is photolysis which doesn't occur during cellular respiration.
Just like Mendel, you have grown a pea plant that has two phenotypic traits you are interested in. Round (Dominant) or Wrinkled (Recessive), Yellow (Dominant) or Green (Recessive) After crossing two plants heterozygous in both traits (RrYy x RrYy), you have 556 progenies classified as follows. Calculate their expected progeny phenotypic distributions as if these traits are independently assorted rather than linked. (4 pts)
Observed Values
315 Round, Yellow Seed
108 Round, Green Seed
101 Wrinkles, Yellow Seed
32 Wrinkled, Green Seed
556 Total Seeds
What are the Expected Values for RrYy x RrYy?
Use Chi-Square Analysis and the p-value chart (refer to Lab 4 handout for formula and chart) to determine whether these traits do indeed display independent assortment. Show your work. (4 pts)
What is your null hypothesis? Are the data consistent with your null hypothesis or can you reject the null hypothesis? Provide the p-value evidence to support your case. (4 pts)
List three properties of DNA that would be the same between DNA isolated from strawberries and any other living organism. (3 pts)
List three properties that would be different between DNA isolated from strawberries and the DNA of any other living organism. (3 pts)
If a chromosome is 2 μm long during mitosis and contains about 1.5 cm of supercoiled DNA, how many times must the DNA condense itself during mitosis? Show your work. (1 pt)
If this measurement were the same for all of your chromosomes, how long would your DNA be in the uncondensed form if you joined all of it from end to end? Show your work. (1 pt)
Answers
Explanation:
Null Hypothesis: The trait distributions are consistent with independent assortment.
p-value = 0.020
Since the p-value is less than 0.05, we can reject the null hypothesis and conclude that the traits do not display independent assortment.
Properties of DNA that would be the same between DNA isolated from strawberries and any other living organism:
1. DNA is composed of nucleotides
2. DNA is composed of four bases (adenine, guanine, cytosine, and thymine)
3. DNA is a double-stranded molecule
Properties of DNA that would be different between DNA isolated from strawberries and the DNA of any other living organism:
1. The order of the nucleotides
2. The number of nucleotides in the sequence
3. The locations of the regulatory sequences
If a chromosome is 2 μm long during mitosis and contains about 1.5 cm of supercoiled DNA, how many times must the DNA condense itself during mitosis?
1.5 cm / 2 μm = 750
Therefore, the DNA must condense itself 750 times during mitosis.
If this measurement were the same for all of your chromosomes, how long would your DNA be in the uncondensed form if you joined all of it from end to end?
750 x 2 μm = 1500 μm = 1.5 cm
Therefore, the total length of the DNA in the uncondensed form would be 1.5 cm.
Look at the DNA strand in the boxes below, write out what the complementary strand DNA would be in the box below it.
DNA strand:
A T A T G C G
C A T C A T C A T
G A T T A C A
G T A G T A G T A
Answers
Answer:
T A T A C G C
G T A G T A G T A
C T A A T G T
C A T C A T C A T
Explanation:
In a complementary DNA sequence, Adenine (A) always pairs with Thymine (T), and Cytosine (C) always pairs with Guanine (G)
matter that assumes the shape of the container
Answers
Answer: The Gases
Explanation:
The gases are matter that can assume the shape of the surface, and it has no shape on it's own. Except in the clouds.
What is a genetic clone?
Answers
Answer:
the process of creating an exact copy of a biological unit (eg, a DNA sequence, cell or organism)
Explanation:
Answer:
Cloning is a technique scientists use to make exact genetic copies of living things. Genes, cells, tissues, and even whole animals can all be cloned. Some clones already exist in nature. Single-celled organisms like bacteria make exact copies of themselves each time they reproduce.
What do you think caused the variations in these values
Answers
Due to differences in the ultimate velocities of various objects, acceleration numbers can vary.
What is Variation in value of g?Variation of g with Height: Because the value of g is inversely proportional to the height above the top of the planet, it diminishes as height increases. G's Relation to Depth: G's value is directly proportionate to the mass of the planet but inversely proportional to the distance beneath its surface.
The acceleration a free-falling object experiences as a result of the mass body's gravitational pull is known as gravitational acceleration and is denoted by the symbol g, which is equal to the SI unit m/s2. The number of g changes from body to body and is dependent on the mass and size of the body.Recombination and mutagenesis both result in variations. Organisms can adjust to their surroundings thanks to variation.
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Full Question: What did you notice with the acceleration values obtained by the different items? What do you think caused the variations in these values?
The scientific theory of plate tectonics states that the Earth's crust is composed of many plates, or slabs of rock. Interactions of these plates have created different landforms, or geologic features. Which of the following statements provides evidence for this theory?
A.
An iceberg buckles the hull of the Titanic and allows water to enter between the steel plates.
B.
The city of Pompeii is perfectly preserved under volcanic ash following the eruption of Mount Vesuvius.
C.
A large earthquake off the coast of Japan induces a wave that is over twenty feet high.
D.
Fossilized marine creatures can be found at the top of the Himalayan Mountains.
Answers
D. Fossilized marine creatures can be found at the top of the Himalayan Mountains. This evidence suggests that the Himalayas were once under water and were formed through the collision of two tectonic plates, pushing the ocean floor up and forming mountains.
The scientific theory of plate tectonics states that the Earth's crust is composed of many plates, or slabs of rock, and the following statements provide evidence for this theory: Fossilized marine creatures can be found at the top of the Himalayan Mountains, which is in Option D.
What is plate tectonics?It is the scientific theory that explains the movement of the earth's lithosphere, or the outermost solid layer of the earth, which is composed of several large plates that move relative to each other, and the presence of fossilized marine creatures at high altitudes provides evidence for the theory of plate tectonics.
Hence, the following statements provide evidence for this theory: Fossilized marine creatures can be found at the top of the Himalayan Mountains, which is in Option D.
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Which of the following correctly lists the order in which cellular components will be found in the pellet when homogenized cells are treated with increasingly rapid spins in a centrifuge?
a. Ribosomes, nucleus, mitochondria
b. Chloroplasts, ribosomes, vacuoles
c. Nucleus, ribosomes, chloroplasts
d. Vacuoles, ribosomes, nucleus
e. Nucleus, mitochondria, ribosomes
Answers
The nucleus, mitochondria, and ribosomes are in the correct order. Hence, option E is correct.
What is a centrifuge?Particles suspended in a liquid are separated using a centrifuge according to their size, density, medium viscosity, and rotor speed. Particles with densities greater than the solvent sink in a solution due to gravitational forces, whereas those with densities lower than the solvent float to the top.
When homogenized cells are subjected to progressively faster spins in a centrifuge, the nucleus, mitochondria, and ribosomes will be discovered in the proper order in the pellet. Thus, option E is correct.
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Imagine you are a scientist conducting fieldwork.
-You discover two groups of mice,
living on opposite sides of a river. Upon further study, you determine that they are
different, but very closely related, species. You also determine that the course of the
river was artificially changed by the building of a dam. What was the likely effect of
human activity on the mice? What type of speciation is likely to have occurred?
Answers
The likely effect of human activity on the mice is that their habitat was divided by the artificially changed course of the river, and this process is known as allopatric speciation and is present in Option A.
What is allopatric speciation?Allopatric speciation is a type of speciation where the physical separation and lack of gene flow could lead to the evolution of two separate and distinct species, and here the construction of the dam likely led to the formation of a geographic barrier, which would have limited the movement of the mice between the two sides of the river and induced the speciation.
Hence, this process is known as allopatric speciation and is present in Option A.
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question is incomplete, complete question is below
Imagine you are a scientist conducting fieldwork.
-You discover two groups of mice,
living on opposite sides of a river. Upon further study, you determine that they are
different, but very closely related, species. You also determine that the course of the
river was artificially changed by the building of a dam. What was the likely effect of
human activity on the mice? What type of speciation is likely to have occurred?
A)allopatric speciation
B)SYMPATRIC