The internal buds of fresh water sponges are otherwise called

Options

A. Choanocyte
B. Gemmule
C. Osculum
D. Blastula

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe the internal buds of freshwater sponges.

2. **Identifying the Organism**: Freshwater sponges, such as Spongilla, have a unique reproductive strategy that involves internal structures.

3. **Recognizing the Process**: In freshwater sponges, a specialized mass of cells is formed within the sponge. This process is known as internal budding.

4. **Defining the Internal Buds**: The internal buds formed in freshwater sponges are called gamules. These are specialized structures that are enclosed in a common opaque envelope.

5. **Germination of Gamules**: When these gamules germinate, they can develop into new offspring, continuing the life cycle of the sponge.

6. **Conclusion**: Therefore, the internal buds of freshwater sponges are otherwise called gamules.

**Final Answer**: The internal buds of freshwater sponges are otherwise called gamules.

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