What are the main points of Darwin's theory of evolution?
Correct answer: D. Descent with modification, natural selection, and adaptation.
- A. Origin of species, descent with modification.
- B. Natural selection, adaptation.
- C. Struggle for existence, evolution.
- D. Descent with modification, natural selection, and adaptation.
Explanation
Darwin's theory of evolution rests on three main points: 'Descent with Modification,' which refers to the passing on of traits from parent to offspring with changes over generations; 'Natural Selection,' which is the process by which certain traits become more common in a population due to their advantage in survival and reproduction; and 'Adaptation,' which is the process by which species become better suited to their environment. Other options mention related concepts but miss one or more of these key points.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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