Anal pores occur in gastrovascular system of

Options

A. Physalia
B. Corals
C. Aurelia
D. Ctenophores.

Answer

To solve the question "Anal pores occur in the gastrovascular system of," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Gastrovascular System**: The gastrovascular system is a type of digestive system found in certain organisms, including those in the phylum Cnidaria and Ctenophora. It serves both digestive and circulatory functions.

2. **Identify the Organisms**: The question refers to organisms that possess a gastrovascular system. The two main groups to consider are Cnidarians (like jellyfish, corals, and sea anemones) and Ctenophores (commonly known as comb jellies).

3. **Focus on Anal Pores**: Anal pores are openings that allow for the expulsion of undigested food. It's important to determine which group of organisms has these anal pores.

4. **Research Ctenophores**: Ctenophores are known to have anal pores. They have a unique digestive system where digestion occurs in the gastrovascular cavity, and waste can be expelled through these pores.

5. **Conclusion**: Based on the information gathered, we can conclude that anal pores occur in the gastrovascular system of Ctenophores.

### Final Answer:
Anal pores occur in the gastrovascular system of **Ctenophores**.

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