Coelenteron of coelenterates serves double purpose of

Options

A. digestion and circulartion
B. digestion and storage
C. excretion and locomotion
D. circulation and storage

Answer

### Step-by-Step Solution:

1. **Understanding Coelenteron**: Coelenteron is the central cavity found in coelenterates, which are organisms belonging to the phylum Cnidaria. This cavity is crucial for various physiological processes.

2. **Identifying Functions**: The coelenteron serves multiple functions. In coelenterates, it plays a significant role in digestion and circulation.

3. **Digestion**: The coelenteron is where the digestion of food occurs. When prey is captured, it is brought into this cavity, where enzymes break down the food particles, allowing nutrients to be absorbed.

4. **Circulation**: Since coelenterates lack a complex circulatory system, the coelenteron also facilitates the distribution of nutrients throughout the organism. The nutrients absorbed in the coelenteron can diffuse into the surrounding cells.

5. **Exclusion of Other Functions**: Other functions such as storage and locomotion are not performed by the coelenteron. Coelenterates do not have specialized storage organs, and while the medusa form can move, this movement does not involve the coelenteron.

6. **Conclusion**: Therefore, the coelenteron serves the dual purpose of digestion and circulation in coelenterates.

### Final Answer:
The coelenteron of coelenterates serves the double purpose of **digestion and circulation**.

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