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Many animals have not evolved to become ...

Many animals have not evolved to become thermoregulators because

A

there are no perfect regulators

B

thermoregulation is energetically expensive process

C

the 'benefit' of thermoregulation is more than the 'cost' they would incur

D

thermoregulators are found only in tropical regions

Text Solution

Verified by Experts

The correct Answer is:
B
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