An example of a homeothermic animal.

The maintenance of a constant internal environment is called ________.

An example of a senstive plant.

_____ is the sum total of all chemical and energy changes taking place in a living organism.

____ is the basic and structural unit of life.

There are three kinds of things in the world ?

_______ are of different size  and shape.

All living things grow _______.

All green plants without exception have chlorophyll.

_______ is the sum total of life process resulting in the building up of the living substance.