Habitats and Adaptations Test - 1

This question is successfully answered by the student who knows that burrowing helps in protecting an animal from heat and, thereby, preventing the loss of water from its body.

The plants found in aquatic habitats have very short or reduced roots as their only function is to anchor the plant at its place.

Thick fur protects snow leopards from the cold weather of mountains.

Desert plants undergo several modifications to conserve water. Desert habitat are characterised by very hot summers and scarcity of water. However, the nights are cold. Desert plants have reduced leaves. This decreases the exposed surface area, thereby reducing the loss of water. They grow compactly to reduce air movement near the leaf surface. Waxy covering and presence of hair further reduces air movement. Closed stomata during day time helps to check water loss, while open stomata during night time enables the intake of carbon dioxide. Hence, the plant observed by Tom is a desert plant.

This question is successfully answered by the student who knows that drooping branches of conifers help in shedding snow. As a result of heavy snowfall in winters, the trees need to get rid of the snow that gets accumulated over the branches.

This question is successfully answered by the student who knows that a water lily has broad leaves that help it to float on the surface of water. Hence, spiny leaves are not seen in a water lily.

In order to answer this question, the student must know that gills help fishes to breathe

under water, while streamlined bodies and fins help fishes to swim under water.

In order to answer this question, the student must know that camels have wide cushiony feet that help them to walk on sand. They do not have clawed feet.

Sea water is saline and pond water is fresh water. Since plant X grows in saline water, it is adapted to grow in sea water. Since plan Y grows in fresh water, it is adapted to grow in pond water.