The study of history of life forms on earth

Evolutionary biology is defined as (a) Study of history of life forms on earth (b) Ontogeny recapitulates Phylogeny (c) Developmental history of embryo (d) Evolutionary history of an organism

Study of history of life forms on earth is known as

The study of history of all life forms on Earth that originated on earth millions of years ago is known as

First life form on earth was a

First life form on earth was a

First life form on earth was a

First life form on earth was a

The oldness of history of man on the Earth surface:

The history of life shows that :