Difference between evolution and organic evolution.

Organic evolution refers how biological processes such as mutation, natural selection, genetic drift, and gene flow changes biological features in successive generations, producing different populations and formation of new species.
Evolution is a heritable phenotypic changes that occurs in a population over successive generations. This is responsible for diversity of living organisms.

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pls include speciation also in the q.
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Geological evolution refers to how geological processes such as sedimentation, mineral deposition, erosion, and orogeny modify geological features over time, altering the fundamental environment and producing new landscapes. Organic (or biological) evolution refers to how biological processes such as germ-line mutation, natural selection, genetic drift, and gene flow modify biological features over successive generations, differentiating populations and producing new species.
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Evolution is a theory regarding change over time, whereby traits are inherited by offspring, and those which provide a reproductive benefit become more prevalent in a population over time. 

Speciation is the process by which one species becomes two. This happens due to reproductive isolation (think of a river changing it path and seperating one population of a species which cannot swim) and the n the passage of a great deal of time....during which their poulations accumulate so many genetic changes between them that they can no longer interbreed...thus becoming two distinct speciesEvolution can happen within a population. This causes a change in the population. For example, a population's fur coat might evolve to be thicker to endure colder whether. This doesn't necessarily mean that this population is a new species. When speciation takes place, a new species is formed because of a reproductive barrier. 
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