The Upper Forelimbs of Humans and Bats Have Fairly Similar

question 7

Multiple Choice

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?

• A) Forelimb evolution was adaptive in people and bats, but not in whales.
• B) Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.
• C) Genes mutate faster in whales than in humans or bats.
• D) Whales are not properly classified as mammals.

---

Definitions:

Vantage Points

Specific positions from which something is viewed or considered, allowing for different perspectives and interpretations.

Empathy

The capability to understand and share the feelings of another individual from their perspective, fostering emotional connection and social harmony.

Affection

A gentle feeling of fondness or liking towards someone or something, often displayed through physical or verbal expressions.

Authoritative

Commanding and self-assured; used to describe someone or something that is recognized as being in control or an expert.