Structures as Different as Human Arms, Bat Wings, and Dolphin

question 1

Multiple Choice

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities?

• A)By identifying the bones as being homologous
• B)By the principle of convergent evolution
• C)By proposing that humans, bats, and dolphins share a common ancestor
• D)A and C only
• E)A, B, and C

---

Definitions:

Social Networking

The use of dedicated websites and applications to interact with other users, or to find people with similar interests to oneself.

Online Conversations

Dialogues or discussions that occur through internet-based platforms, such as forums, social media, or messaging apps.

Commentaries

Detailed interpretations or explanations, often written, on various subjects like literature, legal decisions, or biblical texts, providing insight or criticism.

Viral Marketing

A strategy that encourages individuals to share a marketing message exponentially among their social networks, leading to rapid dissemination and potential popularity.