The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data? Group of answer choices Forelimb evolution was adaptive in people and bats, but not in whales. Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy. Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms. Genes mutate faster in whales than in humans or bats.
The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data? Group of answer choices Forelimb evolution was adaptive in people and bats, but not in whales. Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy. Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms. Genes mutate faster in whales than in humans or bats.
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter19: Population Genetics And Human Evolution
Section: Chapter Questions
Problem 23QP: The Evolutionary History and Spread of Our Species (Homo sapiens) a. Briefly describe the two major...
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The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?
Group of answer choices
Forelimb evolution was adaptive in people and bats, but not in whales.
Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
Genes mutate faster in whales than in humans or bats.
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