In molluscs, the general body cavity is

Options

A. Blastocoel
B. Hydrocoel
C. Haemocoel
D. Pseudocoel.

Answer

To answer the question "In molluscs, the general body cavity is," we will analyze the provided options step by step.

### Step 1: Understand the options
We have four options to consider:
1. Blastocele
2. Hydrocele
3. Hemocele
4. Pseudocele

### Step 2: Evaluate Blastocele
- **Definition**: Blastocele is a fluid-filled cavity present in the early stages of embryonic development in mammals.
- **Conclusion**: Since molluscs are not in the embryonic stage, this option is incorrect.

### Step 3: Evaluate Hydrocele
- **Definition**: Hydrocele refers to a condition where there is an accumulation of fluid in the scrotum, leading to swelling, particularly in males.
- **Conclusion**: This term is not related to the body cavity of molluscs, making this option incorrect.

### Step 4: Evaluate Hemocele
- **Definition**: Hemocele is the body cavity found in molluscs and arthropods. It is filled with hemolymph, which circulates through the body and bathes the tissues and organs directly.
- **Conclusion**: This is the correct option as it accurately describes the body cavity in molluscs.

### Step 5: Evaluate Pseudocele
- **Definition**: Pseudocele refers to a false coelom or body cavity, typically found in nematodes.
- **Conclusion**: This option is also incorrect for molluscs.

### Final Answer
Based on the evaluations, the correct answer is **Hemocele** (Option 3).

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