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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Gurmeet Singh posted an Question
August 23, 2020 • 19:35 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
Sir how to mark this question.?
I JAM GG USP (1-15) 2019 Which one of the following sequences waas proposed by Darwin and Wallace for organic evolution? Overproduction, variations, constancy of pop, constancy of population size
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Rahul kumar Best Answer
First option is correct. The sequence proposed by Darwin and Wallace for organic evolution is Overproduction, variations, constancy of population size, natural selection. First the species produces enormous number of offspring which contains variation then extra population is eliminated because not all the offspring can survive because of population stress. Eventually the natural selection operates for the survival of the fittest.