How do snails, seeds, bears, zooplanktons, fungi and bacteria adapt to conditions unfavourable for their survival?
Adaptations in unfavourable conditions in the following organisms:
(i) Snails: Snails undergo aestivation to avoid summer-related problems such as heat and desiccation.
(ii) Seeds: The seeds undergo dormancy to tide over the adverse environmental conditions. They reduce their metabolic activity and remain quiescent till the suitable environmental conditions return.
(iii) Bears: They undergo hibernation during winters to escape harsh winter conditions.
(iv) Zooplankton: Under unfavourable conditions, zooplankton species in lakes and ponds enter diapause, a stage of suspended development.
(v) Fungi: Various kinds of thick-walled spores are formed which help them to survive in unfavourable conditions. The spores germinate on return of favourable conditions.
(vi) Bacteria: Bacteria form thick spores which help them to survive under unfavourable conditions.
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