Go through the statements :- I. An increase in the number of individuals that have favourable tr...

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Go through the statements :-
I. An increase in the number of individuals that have favourable traits.
II. An increase in the rate at which DNA mutations occur in individuals.
III. The originationof new species.
IV. Change within species.
V. A decrease in the number of individuals which have less favourable traits.
Which one of the following things is not thought to be caused by natural selection?
(a) I and II are correct
(b) Only II is correct
(c) III and IV are correct
(d) Only V is correct
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