Parasitology

To solve the problem, we need to evaluate the assertion and the reason provided, and determine whether they are true or false, and if the reason correctly explains the assertion.

1. Understanding the Assertion (A):
The assertion states: "Nosema is a hyperparasite." A hyperparasite is a parasite that lives in or on another parasite. This is correct. Nosema is a genus of intracellular parasites that infect other parasitic organisms, like insects, making it a hyperparasite.

2. Understanding the Reason (R):
The reason states: "It lives in the body of another parasite." This is also correct. Nosema indeed resides within the body of another parasite, which supports the classification of it being a hyperparasite.

3. Evaluating the Relationship between Assertion and Reason:
Both the assertion and reason are true, and the reason correctly explains the assertion. Since Nosema is classified as a hyperparasite because it lives inside another parasite, the reason provided aligns with the assertion.

4. Conclusion:
The correct answer is:

Final Answer:
The correct answer is (A) A and R are true. R is the correct explanation for A.