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UPSC 1995: Most of the desert plants bloom during night time because
(a)their blooming is controlled by low temperature
(b)they are sensitive to the phases of moon
(c)the desert insects eat away flowers during day time
(d)the desert insects are active during night time
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Not attemptedCorrect Answer: (d) the desert insects are active during night time
Many desert plants open their flowers after sunset because their primary pollinators (moths, beetles, etc.) are nocturnal; blooming at night synchronises with the insects’ activity and also reduces water loss in the daytime heat. Options (a), (b) and (c) do not account for the pollination ecology actually observed. ([licchavilyceum.com](https://licchavilyceum.com/upsc-civil-services-prelims-1995-solved-question-paper/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 1995 Science & Technology question?▼
The correct answer is option (d): the desert insects are active during night time. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Biology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1995, GS Paper 1, as Question 123. It falls under Science & Technology > Biology.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Biology?▼
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.