Complete the summary of the evolution model. all life on earth developed from matter by natural processes. one initial life form gave rise to kinds of organisms which have continued to increase in over time.

Biological evolution is the set of changes in phenotypic and genetic characters of biological populations through generations. This process has caused the diversity of life forms that exist on Earth from a common ancestor. [1] [2] Evolutionary processes have produced biodiversity at each level of the biological organization, including those of species, population, individual organisms and molecular (molecular evolution). [3] All life on Earth comes from a last universal common ancestor that existed between 3800 and 3500 million years ago. [4] [5]

The word evolution is used to describe the changes and was first applied in the 18th century by a Swiss biologist, Charles Bonnet, in his work Consideration sur les corps organisés. [6] [7] However, the concept of that life on Earth evolved from a common ancestor had already been formulated by several Greek philosophers, [8] and the hypothesis that species are continuously transformed was postulated by numerous scientists of the eighteenth and nineteenth centuries, at which Charles Darwin cited in the first chapter of his book The Origin of Species. [9] However, it was Darwin himself in 1859, [10] who synthesized a coherent body of observations and deepened the mechanism of change called selection natural, which consolidated the concept of biological evolution into a true scientific theory. [2] Previously, the concept of natural selection had already been contributed in the 19th century by Al-Jahiz (776-8 68), in his book of animals, with key postulates on the struggle for the survival of species, and the inheritance of successful characteristics through reproduction. [11] [12]

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