Synthetic theory of evolution

many morphologically, biochemically, ecologically and genetically distinct, but reproductively not isolated units-populations and subspecies.
2. Exchange of alleles is possible only within the species, the species is a genetically complete and closed system.
3. Material for evolution are changes heredity-mutations, through sexual reproduction, mutations spread within the population.

waves, gene drift, isolation – factors that supply material for selection – are random and non – directional.
5. The only guiding factor of evolution – natural selection.
6. The Smallest evolutionary unit is the population, not the individual.

taxon can become the ancestor of several child taxa.
8. Evolution is gradual (sometime sudden) and prolonged character. Speciation is a gradual change in the gene pool of a population that ends in reproduction isolation.

level above the species, is only by microevolution.
10. Evolution is not directed to any purpose, evolution is not directed, but predictable. By evaluating the possible influence of the environment, you can predict the General direction of evolution.