Animals have sense organs like eyes, ears, noses and the skin, which help them respond to changes. Animals breathe through an organ called the nose while insects like cockroaches breathe through small holes. Plants produce new offspring from their stems, leaves or seeds while birds lay eggs and animals give birth to young ones. Plants are said to be the most useful gifts of nature to man. The plant kingdom comprises of about 260,000 known species of woody plants, bushes, vines and trees. .
Most plants are green because they contain a substance called chlorophyll.
Plants are anchored in a growing medium such as soil. Most plants have roots, stem, leaves, flowers and fruits, although there might be exceptions. The root of the plant remains under the ground while the other parts of the plant which remain above the ground are known as shoots. Given below is a list of the common parts of a plant and their functions. The flower on the left illustrates the various parts of the plant.