Question

Which of the following pairs of organs is an example of analogous organs?

• A. Forelimbs of a human & bird.
• B. Wings of Butterfly and Bird.
• C. Heart of human & fish.
• D. Leaves & tendrils of pea plant.

Hint:

Analogous organs have similar functions but different structures and evolutionary origins, unlike homologous organs which have similar structures and common evolutionary ancestry.

Answer 1

The Correct Option is B

Step 1: Understanding analogous organs.
Analogous organs are organs that perform the same function but are structurally different. They arise from different evolutionary origins.

Step 2: Explanation of options.
- (A) Forelimbs of a human and bird: These are homologous organs as they have a common evolutionary origin, despite serving different functions.
- (B) Wings of butterfly and bird: These are analogous organs. Both wings serve the purpose of flight, but they have different structures and evolutionary origins.
- (C) Heart of human and fish: These are homologous organs, not analogous, as they come from a common ancestor.
- (D) Leaves and tendrils of pea plant: These are modified structures and not analogous organs.

Step 3: Conclusion.
Therefore, the correct answer is wings of butterfly and bird, as they are analogous organs.

Final Answer: Wings of Butterfly and Bird.