How many species of birds are found in Colombia?

About $1000$ different varieties of ..... have been estimated in India.

India covers the world land area of . . . . . . and contributes the global diversity of . . . . . . .

Define/Explain: Endemism.

Within biological communities,some species are important in determining the ability of a large number of other species to persist in the community. Such species are called

More than half of the earth's flora and fauna is found in