Assertion: The heart of cockroach is neurogenic.
Reason: The heartbeat rate in cockroach is 49 per minute.
(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.

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 solve the question regarding the assertion and reason about the heart of the cockroach, we can follow these steps:

### Step 1: Analyze the Assertion
The assertion states that "The heart of cockroach is neurogenic." This means that the heart requires nervous impulses to contract. In cockroaches, the heart does indeed function in this manner, as it is controlled by a cluster of neurons that stimulate the heart to beat. Therefore, the assertion is **true**.

### Step 2: Analyze the Reason
The reason given is "The heartbeat rate in cockroach is 49 per minute." While this statement may have some truth, the exact heartbeat rate can vary among different species of cockroaches and is not a definitive characteristic. Moreover, this reason does not explain why the heart is neurogenic. Thus, while the reason is **true**, it does not provide a correct explanation for the assertion.

### Step 3: Determine the Relationship
Since the assertion is true and the reason is also true but does not explain the assertion, we need to select the correct option based on this analysis.

### Conclusion
The correct answer is (c) If Assertion is true, but Reason is false.

---