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Question
Darwin in his “Theory of Natural Selection” did not believe in any role of which one of the following in organic evolution?
Darwin in his “Theory of Natural Selection” did not believe in any role of which one of the following in organic evolution?
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Solution
The correct option is D Discontinuous variations
The theory of natural selection is based on the following factors:
(i) Rapid multiplication and limited food and space which leads to struggle for existence.
(ii) Struggle for existence and variation which leads to natural selection or survival of the fittest.
(iii) Natural selection and inheritance of useful variation over many generations which leads to formation of new species.
Darwin in his “Natural Selection Theory” did not believe in the role of discontinuous variation in natural selection. Darwin always believed in the universal occurrence of variation.
So, the correct answer is 'discontinous variation'.
The theory of natural selection is based on the following factors:
(i) Rapid multiplication and limited food and space which leads to struggle for existence.
(ii) Struggle for existence and variation which leads to natural selection or survival of the fittest.
(iii) Natural selection and inheritance of useful variation over many generations which leads to formation of new species.
Darwin in his “Natural Selection Theory” did not believe in the role of discontinuous variation in natural selection. Darwin always believed in the universal occurrence of variation.
So, the correct answer is 'discontinous variation'.
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