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Science · 2025 · 3 marks
CBSE 2025 · Region 3 · Set 3 · Q29
Why is blood circulation in vertebrates known as "double circulation"? Trace its path in the form of a flow chart.
Why is blood circulation in vertebrates known as "double circulation"? Trace its path in the form of a flow chart.
Marking-scheme solution
Blood flows twice in the heart before it completes one complete round of the body.
cava
(Deoxygenated blood)All Life Processes questions2025 question paperNCERT solutions: Life ProcessesPractice Life Processes →
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.