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What is true about cockroach?...

What is true about cockroach?

A

Ureotelic animal

B

Entire foregut is lined by cuticle

C

Male have spermatheca in 6th segment

D

Female have caudal style

Text Solution

AI Generated Solution

The correct Answer is:
To determine what is true about cockroaches, we need to analyze the given statements one by one. ### Step-by-Step Solution: 1. **Identify the Classification of Cockroach**: - Cockroaches belong to the class Insecta and the phylum Arthropoda. This classification is important as it provides context for understanding their biological characteristics. **Hint**: Remember the classification hierarchy: Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species. 2. **Evaluate Each Statement**: - **Option 1**: "Cockroach is a ureotalic organism." - This statement is incorrect. Cockroaches excrete uric acid, which classifies them as uricotelic organisms, not ureotelic. **Hint**: Ureotelic organisms excrete urea, while uricotelic organisms excrete uric acid. - **Option 2**: "The entire foregut is lined by cuticle." - This statement is correct. The foregut of a cockroach is indeed lined with a cuticle, which is a protective layer. **Hint**: The foregut includes structures like the crop and gizzard, which are involved in food storage and grinding. - **Option 3**: "Males have spheromethica in six segments." - This statement is incorrect. Spheromethica is a structure found in females, specifically in the sixth abdominal segment. **Hint**: Remember that male and female cockroaches have different reproductive structures. - **Option 4**: "Females have cordal style." - This statement is incorrect. The cordal style is present in males, not females. Females have a different structure for reproduction. **Hint**: The presence of the cordal style can be used to differentiate male cockroaches from females. 3. **Conclusion**: - After evaluating all options, the only true statement about cockroaches is **Option 2**: "The entire foregut is lined by cuticle." ### Final Answer: The correct answer is **Option 2**: The entire foregut is lined by cuticle.
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