Question

Assertion (A): Reptiles and birds adopted uricotelism. 
Reason (R): To conserve water. 
 

• A. A and R are true. R is the correct explanation for A.
• B. A and R are true. But R is not the correct explanation for A.
• C. A is true. But R is false.
• D. A is false. But R is true.

Hint:

Uricotelism helps conserve water in organisms like reptiles and birds that live in dry environments.

Answer 1

The Correct Option is A

Uricotelism refers to the excretion of nitrogenous waste as uric acid, which is less toxic and more water-conserving. 
Reptiles and birds adopt this method to conserve water, particularly in arid environments. 
Thus, both the assertion and reason are true, and the reason correctly explains the assertion. 
Final Answer: 
A and R are true. R is the correct explanation for A.