Study of fossils is called

(a) ecology                     (b) angiology

(c) exobiology                 (d) none of these

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The 'devonian period' is considered to be as

(a) age of fishes

(b) age of amphibians

(c) age of reptiles

(d) age of mammals.

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The random changes in the allele frequency occurring by chance is termed as

(a) genetic variability

(b) genetic drift

(c) gene migration

(d) mutation

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The first living organisms that appeard on the planet, according to the most accepted view, were
(a) anaerobic
(b) aerobic
(c) photosynthetic
(d) none of the above

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Which of these are considered most essential in the origin of life?
(a) Enzymes
(b) Nucleic acids
(c) Carbohydrates
(d) Proteins

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Genetic drift operates only in

(a) island population 

(b) smaller population 

(c) larger population

(d) none of these.

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The cranial capacity was largest among the 

(a) Peking man               (b) Java ape man

(b) African man              (d) Neanderthal man

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The early stage human embryo distinctly possesses

(a) gills                              (b) gill slits

(c) external ear (pinna)       (d) eye brows.                             

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A baby has been born with a small tail. It is a case exhibiting

(a) retrogressive evolution

(b) mutation 

(c) atavism

(d) metamorphosis.

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Potato and sweet potato 

(a) have edible parts which are homologous organs

(b) have edible parts which are analogous organs

(c) have been introduced in India from the same place

(d) are two species of the same genus.

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