NEET UG BIOLOGY MCQ: BODY FLUIDS AND CIRCULATION

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Analyzing +4 | -1

Assertion: In amphibians and reptiles, double
circulation is incomplete.

Reason: Unlike in birds and mammals, in
amphibian and reptiles, the left atrium receives
oxygenated blood and right atrium receives
deoxygenated blood.

View answer and explanation

Correct option: C

If Assertion is true but Reason is false

Option C (If Assertion is true but Reason is false) is correct because while the assertion about incomplete double circulation in amphibians and reptiles is true, the reason incorrectly describes the flow of oxygenated and deoxygenated blood into the atria.

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