different kind of plant, animal or organism that you see, represents a
species. The number of species that are known and described range
between 1.7-1.8 million. This refers to biodiversity or the number and
types of organisms present on earth. We should remember here that as
we explore new areas, and even old ones, new organisms are continuously
being identified.
As stated earlier, there are millions of plants and animals in the world;
we know the plants and animals in our own area by their local names.
These local names would vary from place to place, even within a country.
Probably you would recognise the confusion that would be created if we
did not find ways and means to talk to each other, to refer to organisms
