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Biology Hard CSS FPSC Uploaded: 14 Jul 2026

What is the process by which organisms survive extreme heat and drought by entering a dormant state?

  • A Aestivation
  • B Hibernation
  • C Migration
  • D Dormancy only
Correct Answer: Option A — Aestivation
Explanation:
Aestivation is a state of dormancy similar to hibernation but entered during hot and dry summer conditions by animals like lungfish snails and some amphibians to prevent dehydration.
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