(C) the fossa present in the bones (D) foramens through whichnerves pass
- An experiment to prove that organic compounds were the basis of life,
was performed by
(A) Oparin (B) Miller (C) Melvin (D) Fox- Connecting link between Reptiles and Birds is
(A) dimetrodon (B) dodo (C) archaeopteryx (D)sphenodon
- According to the Neo-Darwinian theory which of the following is
responsible for the origin of new species?
(A) Mutations (B) Useful variations
(C) Mutations together with natural selection (D)Hybridization.
- Fossils are dated now by
(A) stratigraphic position (B) amount of calcium residue
(C) association with other animals (D) radioactive carboncontents
- Nucleoprotein gave most probably the first sign of
(A) life (B) amino acid (C) soil (D) sugar- According to one of the most accepted theory the earth
atmosphere before any life has originated consisted of water vapour,
hydrogen, NH 3 and
(A) methane (B) nitrogen (C) oxygen (D)
carbondioxide