Question

How did Darwin explain that variations lead to evolution?

Answer 1

Evolution:

1. Evolution is a change in the characteristics inherited, by biological populations over successive generations.
2. According to Darwin, variation must be produced by environmental changes that affect either the body or the reproductive organs.
3. Second, heredity is a developmental process rather than a transmission one; variation is a shift in the developmental process of change.
4. Genetic variety is the existence of different gene sequences in several species' constituent organisms.
5. It makes natural selection possible, which is one of the main factors guiding the development of life.