The function of spemathecae is :

Options

A. Stores egg
B. Helps in ootheca formation
C. Secretes some fluid
D. Stores sperm

Answer

### Step-by-Step Solution:

1. **Definition of Spermatheca**:
- Spermatheca is an anatomical structure found in some invertebrates, primarily within the reproductive system.

2. **Function of Spermatheca**:
- The primary function of the spermatheca is to receive and store sperm. This allows for fertilization to occur at a later time, which is crucial for the reproductive success of the organism.

3. **Examples of Organisms with Spermatheca**:
- In earthworms, which are hermaphrodites, there are four pairs of spermathecae located in segments 6 to 9 of their body.
- In cockroaches, which are dioecious (having distinct male and female individuals), there is one pair of spermathecae found in the female cockroach's 6th segment.

4. **Elimination of Incorrect Options**:
- Option 1: "Stores egg" - This is incorrect as spermatheca does not store eggs.
- Option 2: "Helps in ootheca formation" - This is also incorrect; the spermatheca does not assist in forming ootheca (egg cases).
- Option 3: "Secrete some fluid" - This is not the main function of the spermatheca.
- Option 4: "Stores sperms" - This is the correct answer as it aligns with the primary function of the spermatheca.

5. **Conclusion**:
- The correct answer to the question regarding the function of spermatheca is that it stores sperms.