--------------------are areas on land that are very hot during the day and very cold at night.

The polar bear has a dense layer of fur that protects from cold.

Animals that live in water are called----------

Animals that can live both on land and in water.

Examples for aquatic animals

____________have paddle like limbs

Which animal conserve water in their body,Survive on less food and water, and protects themselves from heat and cold.

A________has a streamlined body shape,its helps the fish to move easily in water.

Which animals have well-developed senses, such as senses of smell and hearing?

Examples for Aerial animals

The ______________________inhabits the North Pole.

Animals spend most of their time on trees-----

Animals that can live both on land and water.

Which animals have wings,body feathers and light and hollow bones.