51.
Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?
A
Variations, natural selection, overproduc- tion, constancy of population size
B
Overproduction, variations, constancy of population size, natural selection
C
Variations, constancy of population size, overproduction, natural selection
D
Overproduction, constancy of population size, variations, natural selection
Answer :
Overproduction, variations, constancy of population size, natural selection
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52.
The finches of Galapagos islands provide an evidence in favour of
A
evolution due to mutation
B
retrogressive evolution
C
biogeographical evolution
D
special creation
Answer :
biogeographical evolution
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53.
If population of a species is transferred to more suitable environment then it will show
A
Protection against enemies
B
More individuals would survive
C
Rate of reproduction increases
D
Unlimitied food would would be available
Answer :
More individuals would survive
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54.
Which one of the following sets includes only the vestigial structures in man?
A
Body hair, olecranon process, coccyx, patella
B
Wisdom teeth, mammary glands, coccyx, patella
C
Coccyx, nictitating membrane, vermiform appendix, ear muscles
D
Coccyx, body hair, ear ossicles, vermiform appendix
Answer :
Coccyx, nictitating membrane, vermiform appendix, ear muscles
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55.
The kind of evolution in which two species of different geneology come to resemble one another closely, is termed as
A
progressive evolution
B
convergent evolution
C
parallel evolution
D
retrogressive evolution
Answer :
convergent evolution
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56.
What is the contribution of W.C.Pei
A
He discovered Cro-magnon man
B
He discovered peking man
C
He discovered Java man
D
None of the above
Answer :
He discovered peking man
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57.
Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
A
Thorn of Bougainvillea and tendril of Cucurbita - Analogous organs
B
Nictitating membrane and blind spot in human eye - Vestigial organs
C
Nephridia of earthworm and malpighian tubules of Cockroach - Excretory organs
D
Wings of honey bee and wings of crow - Homologous organs
Answer :
Nephridia of earthworm and malpighian tubules of Cockroach - Excretory organs
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58.
Who was the first to explain recapitulation theory
A
Weismann
B
Muller and Haeckel
C
Darwin
D
Malthus
Answer :
Muller and Haeckel
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59.
Pasteur succeeded in disproving the theory of spontaneous generation because
A
The laboratory was clen
B
He pulled out the neck of flask into a tube
C
He was lucky
D
Yeast used in flask were dead
Answer :
He pulled out the neck of flask into a tube
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60.
Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non- living matter?
A
Larvae could appear in decaying organic matter
B
Microbes did not appear in stored meat
C
Microbes appeared from unsterilized organic matter
D
Meat was not spoiled, when heated and kept sealed in a vessel
Answer :
Meat was not spoiled, when heated and kept sealed in a vessel
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