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Biological Evolution

Any populatio...

Question

Any population has variations in characteristics. Those characterisatics enable some to survive better in the nature. Darwin called this as .

A

natural selection

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B

origin of species

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C

survival of fittest

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D

Darwinism

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Solution

The correct option is A natural selection
Any population has variations in characteristics. Those characteristics enable some to survive better in the nature. Darwin called this as natural selection. They are better fit to the environment and will survive more and hence selected by nature.

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Q. Any population has variations in characteristics. Those characterisatics enable some to survive better in the nature. Darwin called this as .

Q. In a population, AA type people have variations which are heritable and make their survival better compare to BB type and AB type. Such variations in these people enable them to produce more progeny. The above given example shows which type of natural selection?

Q. The process by which heritable variations enabling better survival, enable an organism to reproduce and leave greater number of progeny is called

Q. Assertion :As favourable variations are transmitted from generation to generation, successive generations become better adapted to the environment, more over, new adaptations may arise due to changing environment. In this way, the adaptive traits preserved by natural selection, will gradually change the characteristics of a species. Reason: This explains the origin of species.

Q. Assertion :Natural selection is the outcome of differences in the ability to reproduce and survive. Reason: The theory of natural selection was given by Darwin.

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