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How do organisms which cannot migrate tend to overcome adverse environmental conditions? Explain taking one example each from vertebrates and angiosperms respectively.
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When an animal is unable to migrate it can avoid stress by escaping in time. As an example the polar bear undergoes hibernation in winters and some snails and fish go into aestivation in summer. The angiosperms show modification to adapt to their surroundings such as modification of leafs into spines in , opening of stomata at night time in xerophytic plants, the presence of aerenchyma in leaves and stem of aquatic plants. In higher plants seeds serve as means to tide over periods of stress and go into a state of 'dormancy' during stress.
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| Question Text | How do organisms which cannot migrate tend to overcome adverse environmental conditions? Explain taking one example each from vertebrates and angiosperms respectively. |
| Topic | Organisms and Populations |
| Subject | Biology |
| Class | Class 12 |
| Answer Type | Text solution:1 |
| Upvotes | 64 |
