Big bang theory was proposed by
Kant
Lemaitre
K. Bahadur
Weismann
(b)Big bang theory was proposed by Lemaitre $1931$.
The Darwinian variations are
According to Darwin, the organic evolution is due to
Which one of the following is the correct example of homologous organs
The origin of seeds in the land plants was achieved about $345 \;million$ years ago, in lineages recognised as ancestral to all more advanced vascular plants in
The classical example of adaptive radiation in development of new species is
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