Assertion: Natural selection is the outcome of differences in survival and reproduction among individuals that show variation in one or more traits.
Reason: Adaptive forms of a given trait tend to become more common; less adaptive ones become less common or disappear.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

If Assertion is true but Reason is false

If both Assertion and Reason are false.

Solution

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

Natural selection is a process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.

Some More Questions From Evolution Chapter

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?

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Evolution

Some More Questions From Evolution Chapter

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 ?

Name the different eras of geologic time scale.

What is single step large mutation?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Evolution

Some More Questions From Evolution Chapter

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 ?

Name the different eras of geologic time scale.

What is single step large mutation?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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.