Which of the following is correct matching?

Options

A. Haemocoel ………..Prawn and Pila
B. Protonephridia ……… Some rotifers
C. Acoelomate ………..Hookworm
D. Both A and B

Answer

To solve the question regarding the correct matching of terms in the context of non-chordates, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Terms**: We need to understand the terms provided in the options. The terms include Hemoseal, Protonephridia, and Urcilomate, along with their respective organisms (Prawn, Rotifers, Hookworm).

2. **Evaluate Hemoseal**:
- Hemoseal refers to the body cavity in certain invertebrates, specifically in molluscs and arthropods, where the fluid called hemolymph circulates.
- The option matches Hemoseal with Prawn, which is an arthropod. This is a correct match.

3. **Evaluate Protonephridia**:
- Protonephridia are a type of excretory system found in some invertebrates, including certain rotifers.
- The option matches Protonephridia with Rotifers, which is also a correct match.

4. **Evaluate Urcilomate**:
- Urcilomate refers to organisms that possess a true coelom (body cavity). However, hookworms are classified as pseudocoelomates, meaning they have a false body cavity.
- Therefore, the match of Urcilomate with Hookworm is incorrect.

5. **Conclusion**:
- Since both Hemoseal with Prawn and Protonephridia with Rotifers are correct, and Urcilomate with Hookworm is incorrect, the last option stating "both A and B" is the correct answer.

### Final Answer:
The correct matching is option 4: both A (Hemoseal with Prawn) and B (Protonephridia with Rotifers) are correct.

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