Cockroach nymph undergoes ______no.of moultings 

Options

A. 10
B. 13
C. 12
D. 8

Answer

To answer the question regarding how many times a cockroach nymph undergoes molting, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Molting**:
- Molting is a process where an organism sheds its exoskeleton to grow. In insects, this is part of their development and metamorphosis.

2. **Identify the Stages of Development in Cockroaches**:
- Cockroaches undergo three main stages in their life cycle: egg, nymph, and adult. The nymph stage is where molting occurs.

3. **Determine the Number of Molts**:
- During the nymph stage, the cockroach will molt multiple times before reaching adulthood.

4. **Refer to Specific Information**:
- It is noted that the American cockroach (Periplaneta americana) undergoes a total of 13 molts during its nymphal stage.

5. **Conclude the Answer**:
- Therefore, the correct answer to the question is that the cockroach nymph undergoes **13** molts.

### Final Answer:
Cockroach nymph undergoes **13** no. of moltings.

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