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Science · 2025 · 1 mark
CBSE 2025 · Region 5 · Set 1 · Q18
Assertion (A): The embryo gets nutrition from the mother's blood with the help of a special tissue called placenta. Reason (R): Placenta is a disc…
Assertion (A) : The embryo gets nutrition from the mother's blood with the help of a special tissue called placenta.
Reason (R) : Placenta is a disc which is embedded in the uterine wall.
Official answer
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
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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.