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Mark the incorrect statement regarding t...

Mark the incorrect statement regarding the head of the cockroach.

A

It is hypognathous.

B

Formed by the fusion of six embryonic segments

C

Head bears appendages forming biting and chewing type of mouth parts

D

A pair of broad antennae arise from membranous sockets lying in
front of eyes.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the incorrect statement about the head of the cockroach, we will analyze each of the four statements provided. ### Step-by-Step Solution: 1. **Statement Analysis**: - **Statement 1**: "It is Hypognathus." - **Explanation**: This statement is true. The head of the cockroach is indeed hypognathous, meaning it is oriented such that it lies perpendicular to the body axis. 2. **Statement 2**: "It is formed by the fusion of six embryonic segments." - **Explanation**: This statement is also true. The head of the cockroach is formed from the fusion of six embryonic segments, which contributes to its structure and flexibility. 3. **Statement 3**: "The head bears appendages forming biting and chewing type of mouth parts." - **Explanation**: This statement is true as well. The head of the cockroach has various mouthparts, including the labrum, labium, mandibles, maxillae, and hypopharynx, which function for biting and chewing. 4. **Statement 4**: "A pair of broad antenna arise from membranous sockets lying in the front of eyes." - **Explanation**: This statement is incorrect. The antennae of the cockroach are not broad; they are long and thread-like, which allows for better sensory perception. ### Conclusion: The incorrect statement regarding the head of the cockroach is **Statement 4**. ### Final Answer: **D** - A pair of broad antenna arise from membranous sockets lying in the front of eyes. ---
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