Answer:
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.
Final victory was attained at the Battle of Fallen Timbers in 1794, after which settlers enjoyed a level of security and stability to that point unknown on the <span>frontier.</span>
Domino Theory is the theory that suggest that once Vietnam becomes communist, that the countries such as Cambodia, Laos, Indonesia, or even India may also fall under the communist regime.
We indeed are using the same techniques on the war against terrorism, seeing as how Afghanistan was once run by a terrorist government/a government whom supported terrorism, we feared that there was a change that Pakistan, or Iran, or Iraq would also fall under these Taliban governments.
