A genus having many species is known as

A genus having single species is known as

A genus with a single species is

A genus with a single species is

A genus with a single species is

Species having many subspecies are

Species having many subspecies are

Species having many subspecies are

How many species are known till today?

The origin of new species & genus is known as -

The species thought insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as