The female sex organ in red algae is flask-shaped and is known as

Options

A. Trichogyne
B. Carpogonium
C. Spermatium
D. Archegonium

Answer

To answer the question about the female sex organ in red algae, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organ in Question**: The question asks for the female sex organ found in red algae, which is also known as rhodophytes.

2. **Understand the Characteristics**: The female sex organ is described as flask-shaped. This is a key characteristic that can help us identify the correct term.

3. **Review the Options**: The options given are:
- Trichoin
- Carpagonium
- Permethium
- Archegonium

4. **Recall Information About Red Algae**: In red algae, the female reproductive structure is known to be flask-shaped.

5. **Identify the Correct Term**: Among the options, the term that matches the description of the flask-shaped female sex organ in red algae is "Carpagonium."

6. **Conclusion**: Therefore, the correct answer is **Carpagonium**.

### Final Answer:
The female sex organ in red algae is flask-shaped and is known as **Carpagonium**.

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