The food in sponges is ingested by

Options

A. Amoebocytes
B. Choanocytes
C. Pinacocytes
D. porocytes

Answer

To answer the question "The food in sponges is ingested by," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sponges**: Sponges are simple aquatic animals that belong to the phylum Porifera. They have a unique body structure that allows them to filter feed.

2. **Identifying Key Cells**: Within sponges, there are several types of cells that play different roles:
- **Amoebocytes**: These cells are involved in the formation of other cells and help in repairing damage.
- **Coenocytes**: These cells are responsible for pumping water through the sponge and storing food particles.
- **Pinacocytes**: These cells form the outer layer of the sponge and are involved in cell adhesion and signaling.
- **Porocytes**: These cells create pores (ostia) through which water enters the sponge.

3. **Function of Coenocytes**: The coenocytes are particularly important because they actively pump water into the sponge. As water flows through the sponge, it carries with it small food particles.

4. **Conclusion**: Since the coenocytes are responsible for the active pumping of water and the ingestion of food particles, we conclude that the food in sponges is ingested by **coenocytes**.

### Final Answer:
The food in sponges is ingested by **coenocytes**.

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