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

1. Variations, natural selection, overproduction, constancy of population size
2. Overproduction, variations, constancy of population size, natural selection
3. Variations, constancy of population size, overproduction, natural selection
4. Overproduction, constancy of population size, variations, natural selection

Correct answer: Overproduction, constancy of population size, variations, natural selection

Solution

Darwin and Wallace argued that organisms produce more offspring than can survive, while population size stays relatively stable because resources are limited. This leads to variation among individuals and, ultimately, natural selection favoring those with advantageous traits.

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