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Solution


Q.

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action    [2020]
(1) Darwin’s Finches of Galapagos islands.
(2) Herbicide resistant weeds.
(3) Drug resistant eukaryotes.
(4) Man-created breeds of domesticated animals like dogs.
1 only (1)  
2 (1) and (3)  
3 (2), (3) and (4)  
4 only (4)  

Ans.

(3)

Herbicide resistant weeds, drug resistant eukaryotes and man-created breeds of domesticated animals like dogs are examples of evolution by anthropogenic action. Darwin’s Finches of Galapagos islands are example of natural selection, adaptive radiation and Founder’s effect.