Famous indian scientist to explain Pheretima posthuma is:-

Options

A. Darwin
B. Bose
C. K.N. Bahal
D. C.S. Basu

Answer

**Step-by-Step Solution:**

1. **Identify the Scientific Name**: The question refers to "Pheretima posthuma," which is the biological name of the earthworm. Recognizing this is crucial to understanding the context of the question.

2. **Research Famous Indian Scientists**: The question asks for a famous Indian scientist associated with the study or explanation of Pheretima posthuma. We need to evaluate the contributions of various scientists to determine who fits this description.

3. **Evaluate the Options**:
- **Option 1: Charles Darwin** - He is known for his theory of evolution, but he is not specifically associated with the study of earthworms.
- **Option 2: Jagdish Chandra Bose** - He made significant contributions to the fields of radio and microwave optics, but he did not study earthworms.
- **Option 3: Karam Narayan Behl (K. N. Behl)** - He is known for his work on the anatomy of Pheretima posthuma (earthworm). This makes him the most relevant scientist in this context.

4. **Conclusion**: Based on the evaluations, the correct answer is K. N. Behl, as he specifically studied the anatomy of Pheretima posthuma.

**Final Answer**: K. N. Behl

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