Which of the following statements about the forces that drive evolution is TRUE? O Unlike the other evolutionary forces, natural selection is the only force that improves the match between the organism and its environment. Unlike the other evolutionary forces, gene flow is the only force that causes populations to become more different. Unlike the other evolutionary forces, mutation is the only force that decreases genetic variability. O Unlike the other evolutionary forces, nonrandom mating is the only force that changes allele frequency.

Which of the following statements about the forces that drive evolution is TRUE? O Unlike the other evolutionary forces, natural selection is the only force that improves the match between the organism and its environment. Unlike the other evolutionary forces, gene flow is the only force that causes populations to become more different. Unlike the other evolutionary forces, mutation is the only force that decreases genetic variability. O Unlike the other evolutionary forces, nonrandom mating is the only force that changes allele frequency.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

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Which of the following BEST describes the theory of natural selection? Living organisms change over time. Each species produces many more offspring than can survive long enough to reproduce. The offspring that do survive contain genes that are inherited from the parents. There is variation among the members of a species. Some of this variation is genetically determined and so can be passed on to future generations. Some individuals have genes that increase their chances for survival and reproduction. These individuals are more likely to reproduce and pass on their genes, causing their genes to become more common in the next generation. There is a struggle for existence among the members of a population.
What is an adaptation in the context of evolution? A heritable trait that was favored by natural selection. choose one of the following. A random genetic mutation that causes a new trait in a population. The ability of an individual to adjust to their environment as it changes..
Which of the following is the best definition of a major transition in evolution? Individuals evolve traits the help them fight off rivals Formerly independent replicating individuals form a collective that reproduces together A group of individuals evolve traits that help them individually forage better Individuals evolve traits that allow them to colonize a new environment.
Which of the following best explains the phrase “survival of the fittest” in terms of evolution by natural selection? The strongest and fastest individuals will always survive and reproduce more often. The individuals that are the healthiest will always get more resources and survive better. Only individuals that have the most mates will survive with limited resources. The individuals that survive better and reproduce more often will pass their traits on more often.
The offspring of better-adapted individuals are expected to make up a larger proportion of the next generation. Which mechanism of evolution best explains this event? Group of answer choices gene flow and genetic drift mutations and genetic drift mutations and nonrandom mating mutations and natural selection
In order for evolution to occur via natural selection on a particular trait, which of the following must be present for that trait? Which out of the 4 answers below is correct? Only 1 answer is correct Variation, mutations, fitness consequences Variation, fitness consequences, mode of inheritance Genetic recombination, variation, mutations Mutations, fitness consequences, mode of inheritance
A population of birds lives on a mountain. In this population, there are red-winged birds, orange-winged birds, and blue-winged birds. A predatory snake eats more of the blue-winged birds because they are not well camouflaged on the red and orange plants that grow on the mountain. This is an example of which mechanism of evolution? Group of answer choices Gene flow Cryptic coloration Natural selection Sexual selection Genetic drift
What is the relationship between natural selection and evolution? Evolution and natural selection have no relationship. Evolution and natural selection work against each other. Evolution is influenced by natural selection. Natural selection is the process by which organisms become better adapted to their environment. Over time, the species evolves and passes on these survival traits. Evolution and natural selection only apply to plants and the changes they make over time. Animals and humans are not affected by evolution and natural selection. Evolution and natural selection are the processes that inhibit a species from passing on survival traits from generation to generation.
Generally, will natural selection result in an increase or decrease in variation? Why does this happen, and how, in theory, will it affect evolution in the future?
What is the difference between evolution, natural selection, and artificial selection? A. Evolution is a genetic change in a population over time which can occur through natural selection. Artificial selection is the differential reproduction of individuals in a population to promote the characteristics chosen by the breeder. B. Natural selection is the change of allele frequencies in a population over time. Evolution leads to differential survival and reproduction of individuals. Artificial selection has produced domesticated animals and plants. C. Evolution is a mechanism of artificial selection. Natural selection is a form of artificial selection in which nature selects the characteristics that are most beneficial to a species. D. Artificial selection is a mechanism of evolution and is the main process of domesticating animals and plants for human use. Natural selection is the same as evolution.
In which of these examples can natural selection act on a trait and cause the population to evolve? A population that is faced with extinction but has no genetic variation A population where a lot of individuals have mutations, but none of the mutations relate to fitness A population with no genetic variation, but where individuals have very high numbers of offspring A population where a few individuals have mutations that allow them to develop traits for producing more offspring than other individuals
in general, will natural selection result in an increase or decrease in variation? Why does this happen and how, in theory, will it affect evolution in the future