Penguins are found in:

Explain the life history variations in organisms.

An elephant has very few hairs,while a bear has thick fur because the bear:

$A$ physical place or set of environmental conditions around the organism to which it must adapt to survive and prosper is . . . . . . .

The aquatic organism that can actively swim at will against the water current is

Small animals have a larger surface area relative to their volume,so they tend to lose body heat very fast when it is cold outside. Then they have to expend much energy to generate body heat through metabolism. This is the main reason why very small animals are rarely found in polar regions. Which of the following explains why small animals are more easily able to climb up a rock compared to large animals?