First slide

Organism and its Environment

Question

Which of the following animals undergo aestivation?

Easy

A

Zooplankton and phytoplankton
B

Snails and fish
C

Bears and seals
D

Snails and octopus

Solution

In animals, the organism, if unable to migrate, might avoid the stress by escaping in time. Bears going into hibernation during winter is an example of escape in time. Some snails and fish go into aestivation to avoid summer-related problems-heat and desiccation. Under unfavourable conditions, many zooplankton species in lakes and ponds are known to enter diapause, a stage of suspended development.

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