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Living organisms require at least 27 elements, of which 15 are metals. Among these, those required in major quantities include
Match List I with List II and select the correct answer using the codes given below the lists: List I I. Fruit II. Seed III. Wood IV. Starch Li
Most of the desert plants bloom during night time because
The correct answer is option (d): Parathyroid. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
This question was asked in UPSC CSE Prelims 1997, GS Paper 1, as Question 117. It falls under Science & Technology > Biology.
This question is rated "moderate". It requires sound conceptual understanding of the topic.
UPSC has asked 97 questions from Biology (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.