Choose the set which depicts only homologus organs.

Options

A. Forelimbs of man, bat , cheetah
B. Wings of bats, butterfly and bird
C. Sting of honey bee, scorpion and snake
D. Tail of rat, peacock and cockroach

Answer

To solve the question of identifying the set that depicts only homologous organs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Homologous Organs**:
- Homologous organs are those that arise from a common ancestor but have evolved to perform different functions. They exhibit similar anatomical structures despite their different roles in different species.

2. **Analyze the Given Sets**:
- **Set 1**: Limbs of man, bat, and cheetah.
- **Set 2**: Wings of bats, butterfly, and bird.
- **Set 3**: Sting of honey bee, scorpion, and snake.
- **Set 4**: Tail of rat, peacock, and cockroach.

3. **Evaluate Each Set**:
- **Set 1**: The limbs of man, bat, and cheetah are homologous organs. They share a common structural origin (forelimbs) but have adapted to different functions (man uses hands for manipulation, bat for flying, cheetah for running).
- **Set 2**: The wings of bats, butterflies, and birds are analogous organs. They serve the same function (flight) but have different evolutionary origins.
- **Set 3**: The sting of honey bee, scorpion, and snake are also analogous organs, as they perform similar functions (defense) but are derived from different ancestral structures.
- **Set 4**: The tail of rat, peacock, and cockroach are not homologous; they have different structures and functions, indicating different evolutionary paths.

4. **Conclusion**:
- The only set that depicts homologous organs is **Set 1** (limbs of man, bat, and cheetah).

### Final Answer:
The correct answer is **Set 1: Limbs of man, bat, and cheetah**.

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