Temperature regulation is found in

Community is:
$I.$ Group of independent,interacting populations of same species
$II.$ Group of independent and interacting populations of same species in specific area
$III.$ Group of independent interacting populations of different species in a specific area
$IV.$ Group of independent and interacting populations of different species in different area
Select the correct option.

Explain how ecology is related to an organism?

$A$: Shivering is an adaptation for low temperature.
$R$: Shivering warms up the body.

The niche of a population is defined as

Penguins are found in .............. .