An animal which comes out at night and hides during the day is called:

How can seals survive in a polar climate where the temperature prevails below $0^{\circ} C$?

Rhododendron is the characteristic vegetation of

Explain the life history variations in organisms.

The biome characterized by a layer of permafrost is known as:

The biome distribution with respect to annual temperature and precipitation is given below. Identify the biomes $P, Q,$ and $R$.
$P \quad\quad Q \quad\quad R$