Nemtatocysts are the

Options

A. Stinging cels of cnidarians
B. Stinging capsules of cnidoblasts
C. Asexual body forms
D. Sexual body forms

Explanation

**Step-by-Step Solution:**

1. **Understanding Nematocysts**: Nematocysts are specialized structures found in certain animals, particularly in the phylum Cnidaria, which includes jellyfish, corals, and sea anemones.

2. **Identifying the Function**: The primary function of nematocysts is to serve as a means of defense and to capture prey. They contain a coiled thread that can be rapidly ejected to sting or immobilize other organisms.

3. **Recognizing the Structure**: Nematocysts are indeed capsulated structures. They are found within specialized cells known as cnidocytes or nidoblasts.

4. **Evaluating the Options**:
- **Option 1**: "Stinging cells of cnidarians" - While nematocysts are involved in stinging, they are not the cells themselves but rather the structures within the cells.
- **Option 2**: "Stinging capsules of nidoblasts" - This accurately describes nematocysts as they are the capsules containing the stinging mechanism found in nidoblasts.
- **Option 3**: "Asexual body forms" - This is unrelated to nematocysts.
- **Option 4**: "Sexual body forms" - This is also unrelated to nematocysts.

5. **Conclusion**: Based on the evaluation of the options, the correct answer is that nematocysts are the "stinging capsules of nidoblasts".

**Final Answer**: Nematocysts are the stinging capsules of nidoblasts.

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