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Cnidom is a (a) Battery of a nematoblas...

Cnidom is a
(a) Battery of a nematoblasts
(b) Group of nematoblasts
(c) Armed thread
(d) Unarmed thread.

A

Battery of a nematoblasts

B

Group of nematoblasts

C

Armed thread

D

Unarmed thread.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "Cnidom is a", we need to analyze the options provided and understand the terminology related to Cnidaria, particularly focusing on the term "cnidom." ### Step-by-Step Solution: 1. **Understanding Cnidom**: - Cnidom refers to a specific structure found in cnidarians (also known as coelenterates). It is associated with the specialized cells that cnidarians possess. 2. **Identifying the Role of Nematoblasts**: - Nematoblasts are the cells that produce nematocysts, which are the stinging structures in cnidarians. 3. **Defining the Options**: - (a) Battery of nematoblasts: This suggests a collection or assembly of nematoblasts. - (b) Group of nematoblasts: This implies a collection of these specialized cells. - (c) Armed thread: This could refer to the stinging part of the nematocyst. - (d) Unarmed thread: This would refer to a non-stinging part. 4. **Analyzing the Correct Definition**: - The term "cnidom" is specifically used to refer to the group of nematoblasts that form the stinging cells (nematocysts) in cnidarians. Therefore, it is best described as a "group of nematoblasts." 5. **Conclusion**: - Based on the definitions and the roles of the structures involved, the correct answer is (b) Group of nematoblasts. ### Final Answer: (b) Group of nematoblasts
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