Biology · Ecology and Environment
What do we mean by Allen's rule?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The body compensates low oxygen availability by increasing red blood cell production, decreasing the binding affinity of haemoglobin and by increasing the breathing rate.
- 2Some plants have no leaves – they are reduced to spines – and the photosynthetic function is taken over by the flattened stems.
- 3Desert lizards lack the physiological ability that mammals have to deal with the high temperatures of their habitat.
- 4Mammals from colder climates generally have shorter ears and limbs to minimise heat loss.✓
Correct answer
Mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
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