How do snails, seeds, bears, zooplanktons, fungi and bacteria adapt to conditions unfavourable for their survival?
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Solution
Adaptations in unfavourable conditions in the following organisms:
Snails: Snails undergo aestivation to avoid summer-related problems such as heat and desiccation.
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.
Bears: They undergo hibernation during winters to escape harsh winter conditions.
Zooplankton: Under unfavourable conditions, zooplankton species in lakes and ponds enter diapause, a stage of suspended development.
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.
Bacteria: Bacteria form thick spores which help them to survive under unfavourable conditions.