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With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statemen
Consider the following: 1. Butterfly 2. Fish 3. Frog How many of the above undergo metamorphosis?
The correct answer is option (c): All three. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
This question was asked in UPSC CSE Prelims 2024, GS Paper 1, as Question 19. It falls under Environment & Ecology > Biodiversity & Conservation.
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
UPSC has asked 45 questions from Biodiversity & Conservation (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.