Question

Which is not one of darwin's four main ideas of natural selection?

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A : evolution always improves organisms.
B : There is differential reproduction among better-adpated organisms.
C : individuals in a population vary in many traits.
D : Organisms produce more offspring than can survive

Answer 1

The answer is letter A. evolution always improves organisms. Darwin did not state this idea because he observed that even if evolution happened to species, there were some species that failed to adopt on the new environment. The other choices are his ideas of natural selection which states that an organism can survive if it has heritable traits that can adopt with the environment.