Assertion: In cockroach, inspiration is an active process.
Reason: It is due to the contraction of tergosternal muscle.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
C. If Assertion is true, but Reason is false.
D. If both Assertion and Reason are false.

Answer

To analyze the assertion and reason provided in the question, we will follow these steps:

### Step 1: Understand the Assertion
The assertion states that "In cockroach, inspiration is an active process." We need to determine if this statement is true or false.

**Hint:** Consider how respiration occurs in cockroaches compared to mammals.

### Step 2: Evaluate the Assertion
In cockroaches, inspiration (the act of inhaling) is not an active process. Instead, it is a passive process. Cockroaches utilize a system of air sacs and tracheae for respiration, and the movement of air is facilitated by the relaxation of muscles rather than active contraction.

**Hint:** Think about the role of muscles in the respiratory process of cockroaches.

### Step 3: Understand the Reason
The reason states, "It is due to the contraction of tergosternal muscle." We need to evaluate whether this reason is true or false.

**Hint:** Recall the function of the tergosternal muscles in the context of cockroach respiration.

### Step 4: Evaluate the Reason
The statement about the contraction of the tergosternal muscles is also incorrect. During inspiration in cockroaches, it is actually the relaxation of these muscles that allows air to enter the tracheal system. Therefore, this reason does not correctly explain the assertion.

**Hint:** Consider what happens to the tergosternal muscles during the respiratory cycle.

### Step 5: Conclusion
Both the assertion and the reason are false. Therefore, the correct answer to the question is that both the assertion and reason are false.

**Hint:** Review the definitions of assertion and reason to ensure clarity in your conclusion.

### Final Answer
Both the assertion and reason are false.

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