Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements.

A) Wings of butterfly and birds look alike and are the results of ...... (i) .... evolution.

B) Miller showed that CH₄, H₂, NH₃, and .....(i) ....., when exposed to electric discharge in a flask resulted in the information of ......(ii) .....

C) The vermiform appendix is a ..... (i) ..... organ and a ......(ii) ..... evidence of evolution.

D) according to Darwin evolution took place due to ....(i) ...... and .....(ii) .... of the fittest.

(D)-(i) small variations, (ii) survival, (A)-(i) convergent

(A)- (i) convergent, (B)-(i) oxygen,(ii) nucleosides

(B)-(i) water vapour, (ii) amino acids (C)-(i) rudimentary, (ii) anatomical

(C)- (i) vestigal, (ii) anatomical (D)-(i) mutations, (ii) multiplication

Solution

(D)-(i) small variations, (ii) survival, (A)-(i) convergent

Wings of butterfly and birds look alike and are the result of convergent evolution. Miller showed that CH₄, H₂, NH₃ and water vapour, when exposed to electric discharge in a flask resulted in the formation of amino acids.
the vermiform appendix is a vestigial organ and an anatomical evidence of evolution.
According to Darwin, evolution took place due to small variations and survival of the fittest hence, option (a) is correct.

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

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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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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.

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.