Question

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?

• A. Variations, constancy of population size, over production, natural selection
• B. Overproduction, constancy of population size, variations, natural selection
• C. Overproduction, variations, constancy of population size, natural selection
• D. Variation, natural selection, overproduction, constancy of population size

Answer 1

The correct option is C Overproduction, variations, constancy of population size, natural selection

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. Lastly the natural selection operates for the survival of the fittest.

So, the correct answer is option -a.