(a) Explain giving examples how artificial selection has helped in the formation of newer varieties of cauliflower.
(b) List the steps involved in the formation of new species.
© How different races of human beings belong to the same species ?
(a) Formation of newer varieties, e.g., Broccoli, cauliflower, red cabbage, etc., by man.
(b) Migration, gene flow, natural selection, new species.
© Capable of interbreeding among themselves.