One of the following refers to Allen's rule:
If the stressful conditions are localized or remain only for a short duration, an organism either migrates or suspends itself.
Mammals from colder climates have shorter ears and limbs to minimize heat loss.
An organism can move from a stressful habitat to a more hospitable area and return when the stressful period is over.
Low atmospheric pressure in higher altitudes results in altitude sickness.
