Oogamy is found in

Options

A. Chlamydomonas eugametos
B. C. monoica
C. C. coccifera
D. Both A and B.

Answer

To determine where oogamy is found, let's analyze the information step by step:

### Step-by-Step Solution:

1. **Understanding Oogamy**: Oogamy is a type of sexual reproduction where the male gamete is smaller and motile, while the female gamete is larger and non-motile. This is a key characteristic that distinguishes it from other types of gametic reproduction.

2. **Identifying the Options**: The question provides four options:
- A) Chlamydomonas eugematosa
- B) Chlamydomonas monica
- C) Chlamydomonas coccifera
- D) Both A and B

3. **Analyzing Chlamydomonas**: Chlamydomonas is a genus of green algae that can reproduce sexually. There are different types of sexual reproduction based on the nature of the gametes:
- **Isogamy**: Gametes are of similar size and shape.
- **Anisogamy**: Gametes are of different sizes and shapes but both are motile.
- **Oogamy**: Characterized by a large non-motile female gamete and a small motile male gamete.

4. **Identifying the Correct Species**: Based on the definitions:
- Chlamydomonas coccifera is known to exhibit oogamy, where the male gamete is smaller than the female gamete.
- The other species mentioned (Chlamydomonas eugematosa and Chlamydomonas monica) do not exhibit oogamy; they are more likely to reproduce via isogamy or anisogamy.

5. **Conclusion**: Therefore, the correct answer to the question "Oogamy is found in" is **Chlamydomonas coccifera** (Option C).

### Final Answer:
Oogamy is found in **Chlamydomonas coccifera**.

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