members of which phylum have ventral mouth and dorsal anus?

Answer

To solve the question "Members of which phylum have ventral mouth and dorsal anus?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Ventral Mouth**: This means the mouth is located on the underside of the organism.
- **Dorsal Anus**: This indicates that the anus is located on the upper side of the organism.

2. **Identify the Phylum**:
- We need to find a phylum in the animal kingdom that exhibits these specific characteristics (ventral mouth and dorsal anus).

3. **Recall Relevant Phyla**:
- Among the various phyla, echinoderms are known for having a ventral mouth and dorsal anus.

4. **Confirm Characteristics of Echinodermata**:
- Echinodermata includes organisms such as starfish, sea urchins, and sea cucumbers.
- They possess a unique water vascular system and exhibit a change in symmetry from bilateral to radial during their development.

5. **Conclusion**:
- Based on the characteristics of having a ventral mouth and dorsal anus, the answer to the question is **Echinodermata**.

### Final Answer:
Members of the phylum **Echinodermata** have a ventral mouth and dorsal anus.

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