Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice? Group of answer choices A. The rock pocket mice have a mutation in a gene that leads to the dark fur color. B. Individuals change color to blend in with the environment C. Predators eat light-colored rock pocket mice. D. There is dark lava rock in the area where they live E. All of the answers are correct F. None of the answers are correct

Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice? Group of answer choices A. The rock pocket mice have a mutation in a gene that leads to the dark fur color. B. Individuals change color to blend in with the environment C. Predators eat light-colored rock pocket mice. D. There is dark lava rock in the area where they live E. All of the answers are correct F. None of the answers are correct

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 9TYU: Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population...

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Your friend remarks, “The giraffe stretched its neck while reaching for higher leaves; as a result, its offspring inherited longer necks.” Which statement is the BEST response to correct your friend’s misconception? A. overproduction of offspring leads to a struggle for survival B. characteristics acquired during an organism’s life are generally not passed on through genes to its offspring C. only favorable adaptations have survival value and unfavorable adaptations are removed from the population D. disuse of an organ may lead to its eventual disappearance
Which is an example of directional selection after several generations on an island population from an original population that had an equal number of individuals with thin, moderate, and thick sized legs? A. Anolis lizards that have evolved thinner legs b. Anolis lizards that have evolved thin and thick legs c. Anolis lizards that have evolved moderate sized legs d. All of the above E. none of the above
In the bighorn sheep population of North America, what would happen if all of the large-bodied, large-horned males were hunted, leaving only small-bodied, small-horned sheep? a)Males could no longer protect females from predators, so eventually all of the sheep would be eaten by predators. b)There would be no phenotypic variation in the population of sheep, and natural selection could not lead to males with larger horns in the future. C)The size of horns would no longer be a heritable traits, and would males would not pass this trait to their offspring. d)Males would begin to use their horns for other behaviors, such as hunting prey or being better competitors.
With stronger natural selection, was the more beneficial allele lost from these small populations?a) It was lost very frequently, and the strength of natural selection did not make any difference.b) It was never lost.c) It was lost a few times, but not very often, and it was lost less frequently under strong selection.d) It was lost a few times, and it was lost more frequently under strong selection.
DON'T EXPLAIN, JUST GIVE THE ANSWER According to Charles Darwin, organic evolution is "descent with modification," which simply means Select one: A. inherited variations decline as reproductive potential is modified. B. characteristics acquired during the lifetime of an individual are passed on to all descendants of the individual. C. the fittest always impose change on the less fit. D. populations change over time.
For natural selection to occur, there must be competition for resources, competition for survival, or 15) different reproductive success. Why is this so? A) Without competition, there is no pressure to mutate.B) The struggle of competition makes individuals stronger.C) Natural selection acts on the different abilities of individuals to survive and pass on their genes to the next generation.D) Populations evolve to preserve the species and don't change unless they must. Then explain why the answer is correct and why the others one are inccorect.
a. What effect does combining genetic drift and natural selection have on beneficial mutations? b. How would you it change if population size increases
Natural selection favored dark-colored fur in the rock pocket mouse. The selective force on the mouse population was ________. 1 - Predators 2 - Genetic mutations 3 - Rock color 4 - Availability of food for the rock pocket mice a) 1 only b) 1 and 3 c) 2 and 3 d) 1, 3 and 4
where does evolution happen? (select all that apply) A. indviduals b. indviduals do not evolve c. populations
A. When genetic drift and natural selection are combined what happens to the deleterious allele. B. What changes would be caused by population size increase
Biologists sometimes say that “natural selection depends on the specific environment where a species lives.” What does this statement mean? A) A) If populations of a species are in different environments, traits that individuals need to meet their needs in each environment will appear. B) Traits can be helpful or harmful. If populations of a species are in different environments, some traits that are helpful in one environment might be harmful in another environment. C) Traits are always either helpful or harmful, and the environment of a population doesn’t matter. If populations of a species are in different environments, the same traits will always be helpful. D) Species were formed to perfectly match their environment. The traits of individuals in a species depend on the specific environment in which they were created.
Which of the following best states a condition which promotes natural selection of a species? A)One baby albino alligator, from a nest of 20 eggs, hatches in the Florida Everglades. B)The population of moths in a forest increased from 100 to 150 members. C)An ocean ecosystem consists of more algae than fish species. D)A female cat has a litter of 5 kittens instead of 6.