CBSE 2026 · Region 5 · Set 1 · Q12 · 1 mark
Which of the following fish led to the extinction of an ecologically unique assemblage of more than $\displaystyle 200$ species of cichlid fish in Lake Victoria of East Africa ?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Nile Perch
Biodiversity and ConservationBiodiversity ConservationRemembermcqmedium
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CBSE Class 12 Biology past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.