The first life on earth came in water and evidences indicate that life orginated in one of the following eras
Palaeozoic
Mesozoic
Cenozoic
Proterozoic
It's Obvious
A species is taxonomically
Which one of the following aspect of evolution is shown by Darwin finches?
A closed system is one which
Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as
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