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In Serpent Star, the lower side contains...

In Serpent Star, the lower side contains

A

Anus and madreporite

B

Anus only

C

Mouth and madreporite

D

Mouth only

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding what the lower side of a Serpent Star contains, we can break down the information step by step: ### Step-by-Step Solution: 1. **Identify the Organism**: The question refers to the Serpent Star, which is a type of echinoderm and is commonly known as a serpent starfish. 2. **Understand the Anatomy**: In echinoderms, the body is usually divided into two sides: the upper side (aboral side) and the lower side (oral side). 3. **Locate the Anus and Mouth**: - The anus is located on the upper side (aboral side) of the Serpent Star. - The mouth is located on the lower side (oral side). 4. **Identify the Metroporite**: The metroporite is a specific structure that allows seawater to enter the body. It is located on the lower side (oral side) along with the mouth. 5. **Summarize the Lower Side Contents**: Therefore, the lower side of the Serpent Star contains: - The mouth - The metroporite 6. **Evaluate the Options**: - Option 1: Anus and metroporite - Incorrect (anus is on the upper side) - Option 2: Anus only - Incorrect (anus is on the upper side) - Option 3: Mouth and metroporite - Correct - Option 4: Mouth only - Incorrect (metroporite is also present) 7. **Conclusion**: The correct answer is that the lower side of the Serpent Star contains both the mouth and the metroporite. ### Final Answer: The lower side of the Serpent Star contains the mouth and the metroporite. ---
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