Answer:
Millions of years ago, the Appalachians were taller than the Himalayas! Millions of years of erosion, however, have taken their toll. ... The crust that is now the Appalachians began folding over 300 million years ago, when the North American and African continental plates collided.
What are the two factors responsible for genetic variation in animals?
Multiple factors can cause genetic variation within a species. Genetic diversity can come from various sources, one of which being mutations, or alterations in the DNA's gene sequences.
Gene flow, or the transfer of genes between several groups of organisms, is another source.
Genetic variation refers to the alteration in gene and gene frequencies. The causes of genetic variation in populations are as follows. Gene mutations, also known as point mutations, are modifications to a gene's chemical structure.
Genetic variety is the term used to describe variations in a population's genetic make-up. 2 Genetic diversity is required for natural selection to occur. 3 Mutations, gene flow, and sexual reproduction are three main sources of variety. 4 Genetic variety originates from DNA mutations that change which modifies the genes of people within a group.
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The pathogens that generate the production of antibodies and are part of your active immunity are called A. T cells B. B cells C. antibodies D. antigens
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The pathogens that generate the production of antibodies and are part of your active immunity are called :
A. T cells
B. B cells ✔
C. antibodies
D. antigens
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Answer:
cell
Explanation:
b) cell is correct
There is growing evidence that mitochondrial Complexes I, II, III, and IV are part of a larger supercomplex. What might be the advantage of having all four complexes within a supercomplex
A supercomplex containing all four complexes may provide several advantages, such as increased efficiency in the electron transport chain.
By having all four complexes within the supercomplex, electrons can be transferred more quickly and efficiently throughout the chain. In addition, the supercomplex may help protect the proteins of the individual complexes against damage and denaturation.
The supercomplex may also allow the complexes to interact more cooperatively, allowing them to better coordinate the transfer of electrons throughout the chain.
Furthermore, having the complexes in a supercomplex allows them to be closer together and more accessible, which may help increase the rate of ATP production. Ultimately, having the four complexes in a supercomplex may result in greater efficiency of the electron transport chain, increased ATP production, and better protection of the proteins.
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A student placed a rock in a graduated cylinder containing water causing the water level in the cylinder to increase by 20 mL. This increase represents the rocks
This growth corresponds to the volume of the rocks. According to the displacement caused by the boulder, the water in the grade cylinder rises.
What features does water have?Water molecules have a twisted, polar shape with partial p-sides on the hydrogen atoms and partial electrostatic force on the oxygen atoms. This is due to oxygen's greater electronegative nature, which draws electrons more potently than hydrogen does. Water is a fantastic solvent.
Why are the water so important?A water molecule is consisting of two hydrogen bonds bound to a carbon atom and has a bend overall structure. This is due to the fact that in addition to bonding with both hydrogen bond, the oxygen molecule also carries 2 sets of lone electrons. maintain the same temperature.
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What foods are rich in proteins?
Animal products
Fruits
Vegetables
Carbohydrates
Answer:
Animal products, sometimes vegetables
Explanation:
Animal products, sometimes vegetables. This is because all animals are made with protein.
Which two molecules bond together to form a disaccharide?
Answer:
Monosaccharides
Explanation:
Joining two Monosaccharides will create a Disaccharide. For example, the monosaccharides, glucose, and fructose bond together to form the disaccharide sucrose, which is produced by plants and is used in white sugar.
NEED HELP ASAPPP PLSSS
Answer:
Parent 1 genotype-D
Parent 2 genotype-d
Punnet Square: Top-D,d
Left side- D,d
Inside square(from left to right):DD,Dd,Dd,dd
3 children should have dimples
I need help on question 15 please
The overall force in Newtons the ostrich egg would experience would be 19.6 Newtons.
What do you mean by Force?
Force is an influence that can change the motion of an object, cause an object to change shape, or produce motion or stress in a stationary object. It is basically a vector quantity, meaning it has both magnitude and direction. Examples of forces include gravity, friction, and electric and magnetic forces.
This can be calculated by using the equation mv = p, where m is the mass of the object (1.4 kg in this case), v is the acceleration (14 meters per second), and p is the overall force. Thus, p = 1.4 kg x 14 m/s = 19.6 N.
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how the expansion of housing developments in southern California might limit coyote population in the area
Answer:
Explanation:
There are several ways in which the expansion of housing developments in southern California might limit coyote population in the area:
Habitat loss: As housing developments are built, natural habitats are often destroyed, which can limit the available space for coyotes and other wildlife.
Human-wildlife conflict: As housing developments bring more people into close proximity with coyotes, there is an increased likelihood of conflict between humans and coyotes. This can lead to coyotes being killed or removed from the area.
Fragmentation of habitat: The expansion of housing developments can also lead to the fragmentation of coyote habitat, making it more difficult for coyotes to move and interact with other members of their species.
Changes in prey availability: Housing developments can also alter the availability of prey for coyotes, which can impact their population size.
Overall, the expansion of housing developments in southern California can have a negative impact on coyote populations by limiting their habitat, increasing the likelihood of conflict with humans, and disrupting their natural behaviors and ecological relationships.
The average rate of primary production in the open ocean is 125 gC/m2/yr. In the most productive ecosystems such as algal beds and coral reefs, the average production is 2000 gC/m2/yr. How many years would it take to accumulate 2000 gC/m2 on the deep-sea floor in the open ocean
Higher chlorophyll fixations and overall higher efficiency are seen on the equator, along the coasts (particularly eastern edges), and in the high-scope sea.
Makers. Essential makers — including microscopic organisms, phytoplankton, and green growth — structure the most minimal trophic level, the foundation of the amphibian food web.
In spite of the fact that they possess under two percent of the seas, the beachfront upwelling regions in the eastern pieces of the Pacific and Atlantic Seas are among the organically most useful marine regions around the world.
The highest zone, from the ocean surface to a profundity of 200 m (656 ft), is known as the epipelagic or photic zone. A lot of accessible daylight makes this the most useful zone of the sea.
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Compartmentalization allows cells to establish physical boundaries for biological processes that enables the cell to carry out different metabolic activities at the same time. Researchers have found that the cytoplasm has a pH of 7.6 while the pH of the intermembrane space (IMS) of the mitochondria is 6.9. What conclusion can you draw from this information
The difference in pH between the cytoplasm and the intermembrane space of the mitochondria indicates that compartmentalization is occurring in the cell.
Compartmentalization is the process of establishing physical boundaries within a cell to keep different biochemical processes separate. This allows the cell to carry out different metabolic activities at the same time and in different environments. T
he acidic pH of the IMS compared to the neutral pH of the cytoplasm suggests that compartmentalization is occurring and that different processes are occurring in these two distinct spaces. The acidic pH in the IMS could be ideal for some biochemical reactions while the neutral pH in the cytoplasm could be ideal for other reactions.
Therefore, this difference in pH confirms that compartmentalization is occurring and allows the cell to perform multiple biochemical processes simultaneously.
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What is the genotypic ratio for 50 50?
A test-cross should result in 50% of all children having the bb genotype and a white phenotype if the male is Bb as previously described. After a testcross to a heterozygous person, there should always be an about 1:1 ratio between the dominant and recessive characteristics. Therefore, the genotypic to phenotypic ratio in this instance is 50:50.
The parts of an organism's genome that make up its genotype. The set of alleles or genetic variations that a person possesses inside a certain gene or genetic area is also referred to as their genotype. The number of copies of each chromosome found in that species, or ploidy, determines how many alleles a person can have for a given gene. Each person has two alleles for each gene since humans are diploid (have two full sets of chromosomes). Homozygous is the term used to describe a genotype where both alleles are the same. The genotype is referred to as heterozygous when there are two distinct alleles.
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Some traits follow non-Mendelian patterns of inheritance. Which is the best term for these patterns based on the reading?
Some traits follow non-Mendelian patterns of inheritance, polygenic traits is the best term for these patterns based on the reading.
The non-Mendelian inheritance pattern is known as what?They are referred to as polygenic traits. The phenotype is slightly amplified by the alleles of each gene. Particularly if each gene has multiple alleles, there are numerous allele combinations that could exist. As a result, a vast spectrum of phenotypes is possible. Adult height is an illustration of a polygenic trait in humans.
Any trait that has a gradient, such as height, skin tone, hair color, nose size, or shape, is non-Mendelian, polygenetic, and influenced by numerous alleles. Another instance of a polygenetic trait that is not Mendelian is eye color.
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PICK A NUMBER PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
2
Explanation:
Edit- lol i just guessed
Answer:
X needs 2 and that will balance out you equation
So the answer would be 2!
Explanation:
- 英辞郎 <3
Which of the following is not true about sexual reproduction?
A.) Sexual reproduction involves gametes.
B.) Through sexual reproduction, traits and characteristics of the species are passed to the offspring.
C.) Most multicellular organisms reproduce through sexual reproduction.
D.) Sexual reproduction involves the simple division of a cell.
In a flower, red is dominant to white. If two
white flowers are crossed, what are the
chances that any of the offspring will be red?
Answer:
The crossing of a red flowered plant and a white flowered plant produces all the offspring with pink flowers. This cross illustrates red and white exhibit incomplete dominance. This situation occurs due to the blending of both the alleles
Explanation:
CORRECT ME IF I AM WRONG
What do the numbers on a pedigree mean?
The number on a pedigree mean the number at which the offspring is produced.
The numbers on a pedigree are used to represent the birth order of individuals within the family. Within each generation, people are numbered from left to right with Arabic numerals. Siblings are usually listed by age, with the oldest on the left. Additionally, Roman numerals are used to denote each generation in the family.
The pedigree is used extensively in genetics to track family history of disease in the offspring that are expected. The pedigree analysis serve as a tool in genetics for preparing genetic models to study disease transmission in families. And thus is a vital tool in classical genetics.
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A desert biome gets two years of above average rainfall. As a result, there is more vegetation than normal. Which effect on the desert ecosystem is most likely?
Answer: herbivores will most likely thrive in this environment.
Data was collected concerning Galapagos bird beak size over time. There are several species finches, and they are also known as
Darwin's Finches. These finches share the same habits and characteristics except for one; they all have different shaped and sized
beaks. The differences in their beaks might be the most important aspect of their survival. Around 1977, there was a huge drop in
finches with small beaks while there was a great increase in large-beaked birds. How can you explain this?
A)
The small-beaked finches were prey for larger animals.
B)
The large-beaked birds preyed on the small-beaked birds.
Available food changed and the small beaked birds could not readily adapt.
D)
Competition for food favored large beaks; the small beaked birds died off.
The struggle among Darwin's Finches, which is especially fierce during dry spells due to food scarcity, benefits those who are most adapted to their environment, according to the best conclusion.
Different finches species have nutritional specializations that are characterized by variations in their beaks due to diverse ecological settings on the same island.
Additionally, it has been demonstrated that finches that live in highly planted zones have a distinct call than those that reside in less vegetated areas, expanding their spectrum of mating calls.
A couple that belongs to the same milieu (environment) is more likely to be discovered as a result of this event, and it is from that point that the stabilization of genetic traits unique to the ecological environment occurs.
With this information, we can conclude that competition, which is particularly severe in periods of drought due to food shortages, favors the individuals most adapted to their environment. Because they have a greater chance of survival and, therefore, of reproduction, their particular genetic characteristics tend to be passed on to subsequent generations.
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Why are there often so many steps between the original signal event and the cell's response?
This is because a variety of components must be integrated in order to accurately interpret and respond to the signal in a timely and effective manner.
The first step in this process is for the signal to be received and interpreted by the cell. This involves the binding of the signal molecule to a specific receptor, which triggers a cascade of cellular responses. This involves the activation of certain proteins, which then act as mediators of the signal within the cell and help to direct the response.
Once the signal has been received and interpreted, it must then be transmitted to the target organelle or region of the cell. This is done by a variety of molecules such as hormones, neurotransmitters, and growth factors. These molecules are released from the cell and travel to their target where they bind to specific receptors. This triggers a series of responses in the target organelle or region.
Finally, the cell must respond appropriately to the signal. This involves the activation of specific genes, which then produce proteins that alter the cells physiology and behavior. This is a process of gene expression that is tightly regulated and allows the cell to respond rapidly and accurately to the signal.
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which sentence is an example of a run-on sentence as a scared for birds and their winter he can help by feeding them
When two separate clauses are combined without the required punctuation or conjunctions, the phrase becomes run-on.
Food is scarce for birds in the winter you can help by feeding them.
Comma splicing and run-on sentences are mistakes that go hand in hand. While a comma splice happens when a comma is used to divide two distinct clauses, a run-on sentence happens when numerous independent clauses are not punctuated or connected in a single phrase.
Run on means to continue: continue. To continue (stuff in type) without a pause or a new paragraph: transitive verb run in. : To add or add anything to the conclusion of a paragraphed item, such as an entry from a dictionary.
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Why antibiotics are classified as drugs and useful drugs? Please helpp
Answer:
Antibiotics, also known as antibacterials, are medications that destroy or slow down the growth of bacteria. They include a range of powerful drugs and are used to treat diseases caused by bacteria. Antibiotics cannot treat viral infections, such as cold, flu, and most coughs.
Explanation:
compare the air pollution of Uttar Pardesh, Arunachal Pradesh, and Meghalaya
Answer :uttar Pradesh is more polluted than any of these.
Explanation:
HELP FAST PLZ TAKJNG A TEST !!!!!! Will give Brainly and 30 points !!
Answer: smog
Explanation:
Answer:
I believe the answer is B. Smog
Explanation:
Can someone help me?
Darwin observed how farmers and breeders produced many kinds of farm animals and plants. These plants and animals had traits that were desired by the farmers and breeders. He also noticed how the study of similar body structures and vestigial organs could add to the evidence of evolution. After performing several breeding experiments, he came to certain conclusions and formulated some theories. His theory of evolution and natural selection is the most accepted one.
What is the reason behind the acceptance of Darwin's theory?
Responses
A It is based on the practical example of Lamarck’s theoryIt is based on the practical example of Lamarck’s theory
B It is supported by its harmonizing with other views.It is supported by its harmonizing with other views.
C It is based on the ideas of earlier hypothesis and laws.It is based on the ideas of earlier hypothesis and laws.
D It is supported by practical evidence and examples.It is supported by practical evidence and examples.
The reason behind the acceptance of Darwin's theory is based on D It is supported by practical evidence and examples which help to shape a scientific theory such as in this case.
Why is important the presence of evidence to formulate a scientific theory?The presence of evidence is key to formulating a scientific theory because all theories in sciences are based on the repetitive observation of empirical data that can be used to make predictions and thus tested i.e., confirmed or rejected by experimental or observational procedures such as in the case of the evolutionary theory proposed by Charles Darwin to explain the origin of species.
Therefore, with this data, we can see that the presence of evidence is fundamental in order to formulate a scientific theory since this info allow us to understand a given observation of the natural world and also allow us to make predictions.
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Why must cells have an upper and lower limit to their size?
Cells are the basic building blocks of life and, as such, are essential for the functioning of all living organisms. For that reason, it is important for cells to have an upper and lower limit to their size. These limits serve vital roles in cell structure, function, and metabolism.
The upper limit to cell size is important because too large of a cell can cause problems with cellular communication and the distribution of nutrients throughout the cell. In general, larger cells are more difficult to maintain, as they require more energy and resources to sustain their structure. If a cell exceeds its upper limit, it becomes too big to be supported by the metabolic resources available to it and eventually dies.
The lower limit is also important for cellular function. Cells that are too small have difficulty forming necessary structures and have a harder time performing certain metabolic processes. This is because small cells are limited in the number of organelles they can contain and the number of molecules they can process. Small cells are also less efficient in their use of energy and resources, making it difficult for them to survive in certain environments.
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Why do great white sharks travel over long distances?
Answer: they travel far cus they have to eat new food to eat when the water temperature gotta be cool
Explanation:
Describe in detail the process of Natural Selection / Evolution.
Natural Selection is the process by which the most adapted, or fittest, species survive and the least adapted, or unfit, species do not survive. An example of Natural Selection is if there are two species of birds that eat the same thing, but one of the species has a beak that makes it harder to eat the food, naturally the species that has the beak fit to eat that food will survive. The species that is not fit to eat that food will either adapt or will be unable to survive. Evolution is a species adapting to the enviornment over a period of time. There is microevolution and macroevolution.
Write a claim evidence and reasoning on Do trees change the composition of the atmosphere around us?
Answer:
Claim: Trees change the composition of the atmosphere around us.
Evidence: Trees absorb carbon dioxide from the atmosphere through the process of photosynthesis and release oxygen back into the air. This process helps to regulate the concentration of these gases in the atmosphere and can affect the overall composition of the air.
Reasoning: Photosynthesis is a fundamental process that occurs in plants, including trees. During photosynthesis, trees absorb carbon dioxide from the air and use it, along with sunlight and water, to produce energy and grow. As a byproduct of this process, trees release oxygen back into the air. This exchange of gases between trees and the atmosphere helps to regulate the concentration of carbon dioxide and oxygen in the air and can affect the overall composition of the atmosphere. Therefore, it is reasonable to conclude that trees do change the composition of the atmosphere around us.