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Read the following statements about the ...

Read the following statements about the cockroach and select the option :
I. Forewings (mesothoracic) called tegmina are opaque dark and leathery and cover the hind wings .
II. Head is formed by the fusion of eight segments and shows little mobility .
III. Genital pouch in male is formed by `9^(th) and 10^(th)` terga and `9^(th)` sternum.

A

I, II and III are correct

B

II and III are incorrect

C

Only I is correct

D

Only II is incorrect

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements about the cockroach, we will analyze each statement one by one. ### Step-by-Step Solution: 1. **Analyzing Statement I:** - The statement reads: "Forewings (mesothoracic) called tegmina are opaque dark and leathery and cover the hind wings." - **Evaluation:** This statement is correct. The forewings of the cockroach, known as tegmina, are indeed opaque, dark, and leathery, and they serve to protect the hindwings when the cockroach is at rest. 2. **Analyzing Statement II:** - The statement reads: "Head is formed by the fusion of eight segments and shows little mobility." - **Evaluation:** This statement is incorrect. The head of a cockroach is formed by the fusion of six segments, not eight. Additionally, the head exhibits considerable mobility due to the flexible neck, allowing for a greater range of movement. 3. **Analyzing Statement III:** - The statement reads: "Genital pouch in male is formed by 9th and 10th terga and 9th sternum." - **Evaluation:** This statement is correct. In male cockroaches, the genital pouch is indeed formed by the 9th and 10th terga (dorsally) and the 9th sternum (ventrally). ### Conclusion: - Based on the evaluations: - Statement I: Correct - Statement II: Incorrect - Statement III: Correct ### Final Answer: - The correct option is: **Only second is incorrect.** ---
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