All the human races like Africans, Asians, Europeans, Americans and others might have evolved from a common ancestor

All the human races like Africans, Asians, Europeans, Americans and others might have evolved from a common ancestor. Provide a few evidences in support of this view.

Answer:
All human races have evolved from a common ancestor because everybody has:

  • Common body design, structure, physiology and metabolism
  • Constant chromosome number
  • Common genetic blue print
  • Freely inter-breeding species.