CBSE 2023 · Region 5 · Set 2 · Q20 · 2 marks
"Abingdon tortoise in Galapagos islands became extinct within a decade on introduction of goats in the island." Explain giving reason.
Marking-scheme solution
Greater browsing efficiency of goats (competitively superior) than Abingdon tortoise, led to competitive exclusion of Abingdon tortoise (competitively inferior) due to limited resources.
Biodiversity and ConservationBiodiversity ConservationUnderstandvery_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.