Question

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

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

Answer 1

Answer: (C)

Overproduction, constancy of population size,variations, natural selection

Answer 2

Organisms often produce a greater number of offspring as a survival strategy. This leads to competition for resources among individuals of the same species and between different species. During this struggle for existence, minor variations naturally emerge in each new generation as a result of genetic inheritance from their parents, providing the raw material for evolutionary change. Nature then selects those variations that prove advantageous or adaptive for the organism's survival and reproduction.

Therefore, the appropriate sequence is option (C): Overproduction, competition for resources, emergence of variations, and natural selection.