Q. Which of the following sequences was proposed by Darwin and Wallace for organic evolution?
A) Over-production, constancy of population size, variations, natural selection
B) Variations, natural selection, over-production, constancy of population size
C) Over -production, variations, constancy of population size, natural selection
D) Variations, constancy of population size, over-production, natural selection
Explanation
Though living organisms tend to multiply geometrically, the number of individuals of a species tend to remain constant over along period of time. Out of heterogenous population, (due to variation) best adapted individuals are selected by nature.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.