Question

Select homologous organs from the following.

• A. Forelimbs of lizard and wings of birds
• B. Wings of birds and insects
• C. Wings of pterodactyl and insect
• D. Vermiform appendix and sacrum in human

Hint:

Homologous organs indicate divergent evolution.

Answer 1

The Correct Option is A

Step 1: Understanding homologous organs.
Homologous organs are those which have the same basic structural plan and origin but may perform different functions.
Step 2: Analysis of the given options.
Forelimbs of lizard and wings of birds share a common structural origin as forelimbs of vertebrates, though their functions differ.
Wings of birds and insects are analogous, not homologous, as their origins are different.
Wings of pterodactyl and insect are also analogous.
Vermiform appendix and sacrum are not homologous organs.
Step 3: Conclusion.
Thus, forelimbs of lizard and wings of birds are homologous organs.