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Question
What is the difference between ectotherms and endotherms? Give examples of both.
Distinguish Between
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Solution
| Basis of Difference | Ectotherms | Endotherms |
|---|---|---|
| Main heat source | Depend mainly on external heat | Generate heat mainly through metabolism |
| Body temperature | Varies with the surroundings | Maintained relatively constant |
| Thermoregulation | Mainly behavioural | Physiological and behavioural mechanisms |
| Activity in cold conditions | Often becomes less active | Can remain active |
| Examples | Fish, amphibians and reptiles | Birds and mammals |
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Chapter 17: Organisms and Populations - EXERCISES [Page 961]
