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A: In cockroach, each segment is covered...

A: In cockroach, each segment is covered by three hardened plates called sclerites.
R: These sclerites are dorsal tergite, ventral sternite and lateral pleurite.

A

IF both assertion & Reason are true and the rason is the correct explanation of the assertion

B

If both assertion & reason are true but the reason is not the correct explanation of the assertion, then mark

C

If assertion is true statement but reason is false, then mark

D

if both assertion and reason are false statement

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that in cockroaches, each segment is covered by three hardened plates called sclerites. We need to analyze whether this statement is true or false. 2. **Analyzing the Structure of Cockroach Segments**: Cockroaches, which belong to the phylum Arthropoda, have a body divided into three main parts: head, thorax, and abdomen. Each of these parts is further segmented. 3. **Identifying the Sclerites**: The segments of a cockroach are covered by an exoskeleton made up of hardened plates known as sclerites. These sclerites provide protection and support to the body. 4. **Listing the Types of Sclerites**: The sclerites are classified into four types: - Dorsal sclerite: Tergum or tergite - Ventral sclerite: Sternum or sternite - Lateral sclerites: Two pleura or pleurites 5. **Evaluating the Assertion**: The assertion claims there are three sclerites (dorsal, ventral, and lateral). However, there are actually four sclerites, as identified above. Therefore, the assertion is **false**. 6. **Understanding the Reason**: The reason states that these sclerites are dorsal tergite, ventral sternite, and lateral pleurite. Since there are two lateral pleurites, this statement is also **false**. 7. **Conclusion**: Both the assertion and the reason are false statements. ### Final Answer: Both the assertion and the reason are false. ---
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