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Evolution

Question
CBSEENBI12000431
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What does natural selection lead to ?

Solution
Natural selection can lead to-
i. Stabilisation- in which more and more individuals aquire the mean character value.
ii. Directional change - in which more and more individuals aquire character other than the mean character.
iii.  Disruption in which more and more individuals aquire peripheral character value at both the ends of distribution.

Some More Questions From Evolution Chapter

Give another name for origin of life from non living matter.

Arrange the following substances in a proper sequence with regard to the formation of chemical constituents at the time of origin of life :

Sugar, methane, nucleic acid and amino acid.

What is the phenomenon called when the original drifted population becomes founders?

What are the two key concepts of Darwinian Theory of Evolution

What were the units of life according to the early Greek thinkers ?

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

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