Question

Your arm is homologous with:-

• A. A seal flipper
• B. An octopus tentacle
• C. A bird wing
• D. Both (a) and (c)

Answer 1

The correct option is D

Both (a) and (c)

The correct option is D:

Explanation of the correct option :

1. We know the human arm, the flippers of seals, and the wings of the birds are the forelimbs containing similar bones.
2. These forelimbs have a common origin and similar anatomical features but have been modified to perform different functions.
3. Flippers allow the seal to swim, birds fly using their wings and humans perform a variety of functions using their arms.
4. Such structures are homologous to each other.
5. The wings of insects are anatomically different.

Final answer:

Your arm is homologous with a seal's flipper and a bird's wing.