191.
Darwinism finches are an excellent example of A
adaptive radiation
B
seasonal migration
C
brood parasitism
D
connecting links
Answer :
adaptive radiation
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192.
Homologous organs are A
Wings of insects and Bat
B
Gills of Fish and lungs of Rabbit
C
Pectoral fins of Fish and fore limbs of Horse
D
Wings of Grosshopper and Crow
Answer :
Pectoral fins of Fish and fore limbs of Horse
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193.
Diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos Islands, as observed by Darwin, provides evidence for A
Intraspecific variations
B
Intraspecific competition
C
Interspecific competition
D
Origin of Species by natural selection
Answer :
Origin of Species by natural selection
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194.
Dinosaurs originated A
After evolution of mammals
B
With mammals
C
Much before mammals
D
Before mammals-and they formed them
Answer :
With mammals
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195.
Golden age of Dinosaurs was during A
Coenozoic era
B
Palaeozoic era
C
Archeozoic era
D
Mesozoic era
Answer :
Mesozoic era
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196.
In the population of a species chances of the spreading of a mutant gene increases when it is A
Recessive
B
Natural selection occurs
C
Dominant
D
Neither dominant nor recessive
Answer :
Natural selection occurs
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197.
Presence of gills in the tadpole of frog indicates that A
fishes were amphibious in the past
B
fishes evolved from frog-like ancestors
C
frogs will have gills in future
D
frogs evolved from gilled ancestors
Answer :
frogs evolved from gilled ancestors
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198.
Who discovered Java ape man A
Leakey
B
Mayr
C
Davidson Black
D
Dubois
Answer :
Dubois
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199.
According to Hugo de Vries, the mechanism of evolution is A
Multiple step mutations
B
Saltation
C
Minor mutations
D
Phenotypic variations
Answer :
Saltation
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200.
Miller synthesized simple amino-acid from A
Methane, ammonia, oxygen
B
Hydrogen, methane, ammonia, water
C
Ammonia, methane, carbon-dioxide, oxygen
D
Hydrogen, oxygen, water, nitrogen
Answer :
Hydrogen, methane, ammonia, water
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