Algae in which sexual reproduction is oogamous type and complex post fertilization development is found ?

Options

A. Red Algae
B. Green Algae
C. Fungi
D. Brown Algae

Answer

To solve the question regarding which type of algae exhibits oogamous sexual reproduction and complex post-fertilization development, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- Oogamous reproduction refers to a type of sexual reproduction where the female gamete (egg) is larger and non-motile, while the male gamete (sperm) is smaller and motile.

2. **Identify the Types of Algae**:
- The question provides four options: red algae, green algae, fungi, and brown algae.

3. **Analyze Red Algae**:
- Red algae (Rhodophyta) are known for their complex reproductive structures and processes. They exhibit oogamous reproduction, where the female gamete is larger and non-motile.

4. **Examine Other Options**:
- Green algae (Chlorophyta) and brown algae (Phaeophyceae) generally do not exhibit complex post-fertilization development as seen in red algae.
- Fungi are not classified as algae, and their reproductive methods differ significantly.

5. **Conclusion**:
- Based on the characteristics of the reproductive processes, red algae are the correct answer as they demonstrate oogamous reproduction and have complex post-fertilization development.

### Final Answer:
**Red Algae (Rhodophyta)**

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