Deciduous trees are usually seen in 

The presence of specific features which enable a plant or animal to live in a particular habitat is 

Name an aquatic plant in which the base of the leaf stalk is spongy.

Soil in tropical rainforest is nutrient deficient as a result of:

All the living things and all their interactions with each other and their environment is:

The actual location in the environment where an organism lives and consists of all the physical and biological resources available to a species.

The special appendages in aquatic animals that help them in swimming in water.

Animals living in which region hibernate during cold winters?

Plants living in water are called.

Name of the grasslands of  North America.