Double Circulation in Humans — NEET Biology
📚 Practice Concept📖 NCERT Source
What is meant by double circulation? What is its significance?
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QuestionPractice Question
Assertion (A): Fishes have a different pattern of blood circulation compared to mammals. Reason (R): Fishes have double circulation while mammals have single circulation.
📖 Solution & NCERT Explanation
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Correct answer: C — If assertion is true but reason is false.
NCERT confirms different circulation patterns exist (Assertion true). However, NCERT states fishes have “single circulation” where “blood passes through heart once per complete circuit” while mammals have double circulation. Reason reverses this, making it false.
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What does NCERT say about What meant by double?
What is meant by double circulation? What is its significance?
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Body Fluids and Circulation, Class 11 NCERT Biology.
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
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