Darwin's main contribution to the theory of evolution was his theory of natural selection.
Explanation:
Natural selection is the phenomenon that some organisms from a particular population fit better into their environment, that is, are more likely to provide surviving offspring than less well-adapted organisms. The best adapted organisms will increasingly gain the upper hand within the population (survival of the fittest). It is thus one of the mechanisms of evolution. Mutations in, and recombinations of, the genetic material of the organisms cause the genetic variation in the population, allowing this selection.
I think that D. A permanent divide was established between North and South Korea. is the result of the Korean War. DMZ was created and divided both North and South Koreas.<span> </span>
The people we call Native Americans were "many different tribes in North America who lived in <span>all different areas of this country" and spoke many different dialects, since Columbus originally thought he had found the nation of India. </span>
Plutocracy refers to a kind of economic system where the seat of power
or control rests on the rich. The owners of haciendas and plantations rule the
workers and the people who depend on them for daily survival. Wealth elevates
the individuals or nations to power over the poor whose tasks are limited to
serving their rich masters.
