The term 'Alpha diversity' refers to

Which of the following regions is $NOT$ a biodiversity hotspot?

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

How many species in the world are facing the threat of extinction according to the $IUCN$ Red List $(2004)$?

Read the following statements:
$(A)$ India has a greater ecosystem diversity than Norway.
$(B)$ According to the $IUCN$ $(2004)$,the total number of plant and animal species described so far is slightly more than $1.5$ million.

Read the following statements:
$(A)$ Tropics harbour more species than temperate or polar areas.
$(B)$ Colombia located near the equator has nearly $1400$ species of birds.
$(C)$ India has less than $105$ species of birds.