Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was

Which one of the followings is also called Sewall Wright Effect?

The idea of Natural selection as the fundamental process of evolutionary changes was reached

Which one of the following statements is correct?

Jurassic period of the Mesozoic era characterized by

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:

Organic compounds first evolved in earth required for origin of life were

Analogous structures are

Select the correct statement from the following:

An important evidence in favor of organic evolution is the occurrence of

Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from nonliving matter

Assertion:  The  earliest  organisms  that  appeared  on  the  earth  were  non-green  and presumably anaerobes.

Reason: The first autotrophic organisms were the chemo-autotrophs that never released oxygen.

Assertion: Coacervates are believed to be the precursors of life.

Reason: Coacervates were self-duplicating aggregates of proteins surrounded by lipidmolecules.