All human races like Africans, Asians, Europeans, Americans and others

1.	All human races like Africans, Asians, Europeans, Americans and others look so different from each other still they belong to the same species. Give three points to justify the statement.
Answer» (i) Freely interbreeding, producing fertile offspring. (ii) Same number of chromosomes-23 pairs. (iii) Common body design, anatomy, and physiology.

All human races like Africans, Asians, Europeans, Americans and others look so different from each other still they belong to the same species. Give three points to justify the statement.

Answer»

(i) Freely interbreeding, producing fertile offspring.

(ii) Same number of chromosomes-23 pairs.

(iii) Common body design, anatomy, and physiology.