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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

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


A.

(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.

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.

276 Views

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

Founder Effect.
733 Views

What conditions were created by Miller in his experiment?

Miller  created electric discharge in a closed flask that contained CH4, NH3, H2 and water vapour at high temperature like 800°C
708 Views

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.


Methane—sugar—amino acid—nucleic acid.
752 Views

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

Abiogenesis
771 Views

When did life appear on earth ?

 500 million years ago.
996 Views