Q15 of 167 Page 208

Choose the one term from the following which includes the other three: broccoli, wildcabbage, cauliflower, cabbage.

Various plant parts of Wild Cabbage (Brassica oleracea) are modified by artificial selection to give broccoli, cauliflower and cabbage. Thus, Wild cabbage includes the other three.


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13

Why are human beings who look so different from each other in terms of size, color and looks said to belong to the same species

 14

Name five varieties of vegetables which have been produced from 'wild cabbage' by the process of artificial selection.

 16

Fill in the following blanks with suitable words:

(a) The human forelimb and bat's forelimb are examples of..................... organs whereas an insect's wing and a bat's wing are an example of ..................... organs.


(b) The evolution of eye is an example of evolution by .....................


(c) The scientific name of all human beings is....................


(d) Broccoli has evolved from ..................... by the process of artificial selection.


(e) The theory of natural selection for evolution was proposed by……………..

 17

Match the terms given in column I with those given in column II :



























Column I



Column II



(i) Fossil



(a) A famous evolutionist



(ii) A theory of evolution



(b) Survival of the fittest



(iii) Probable ancestor of bird



(c) Petrified remains of prehistoric life



(iv) Charles Darwin



(d) Father of genetics



(v) Gregor Mendel



(e) Archaeopteryx