CBSE 2023 · Region 5 · Set 3 · Q21 · 2 marks
"Some species of insects and frogs have evolved with various specific features that help them from being detected."(a)Justify the statement giving reasons.(b)Mention any two such features.
"Some species of insects and frogs have evolved with various specific features that help them from being detected."
(a)
Justify the statement giving reasons.
(b)
Mention any two such features.
Marking-scheme solution
(a) To lessen the impact of predation / to avoid their extinction / to protect themselves
(b) Ability to camouflage / cryptically coloured for protection from predators, poisonous and distasteful to its predators.
EvolutionWhat are the Evidences for Evolution?Understandvery_short_answermedium
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CBSE Class 12 Biology past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.