According to some early Greek philosophers life can transfer from planet to planet in form of a unit. These units are called as:

Options

A. Spores
B. Sperms
C. Pangenes
D. Protobiont

Answer

To answer the question regarding the early Greek philosophers' belief about the transfer of life from planet to planet in the form of units, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the concept held by early Greek philosophers regarding the transfer of life between planets.

2. **Identifying the Options**: The options provided are:
- A) Spores
- B) Sperms
- C) Pangenes
- D) Protobiont

3. **Analyzing Each Option**:
- **Spores**: Early Greek philosophers believed in the idea of panspermia, which suggests that life can spread through spores or similar units from one planet to another.
- **Sperms**: These are reproductive cells and are not related to the concept of life transfer between planets.
- **Pangenes**: This term is associated with Darwin's theory of heredity and does not pertain to the transfer of life between planets.
- **Protobiont**: This refers to the early forms of life or aggregates of organic compounds, but it does not specifically relate to the idea of life transferring between planets.

4. **Conclusion**: Based on the analysis, the correct answer is **A) Spores**, as they align with the concept of panspermia proposed by early Greek philosophers.

### Final Answer:
According to some early Greek philosophers, life can transfer from planet to planet in the form of units called **Spores**.

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