AIIMS 2018 Botany Ammonotelism Assertion Reason Question
Assertion: Many bony fishes are ammonotelic Reason: Ammonia is highly soluble in water
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
Option B is correct because both the assertion that many bony fishes are ammonotelic and the reason that ammonia (NH₃) is highly soluble in water are true. Bony fishes excrete ammonia directly into the surrounding water due to its high solubility, which allows for efficient nitrogen waste removal. Option A is incorrect because, while both statements are true, the reason provided does not directly explain why bony fishes are ammonotelic; rather, it describes a property of ammonia. Options C and D are incorrect as they assert that either the assertion or the reason is false, which is not the case.
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