Answer:
The Plains Indians were hunters and agriculturalists, they hunted large animals like bison and planted crops such as beans, squash, and corn. Due to being dependent upon hunting, the Plains Indians were nomadic and would easily set up their teepee housing units wherever they went. Several tribes would perform the Sun Dance which is a ritual of sacrifice for the benefit of the community. As the horse was introduced to the tribes that helped in hunting and movement, it would begin to create competition among the different tribes.
The yellow fever mosquito, Aedes aegypti<span> (Linnaeus)
This has been a nuisance species in the United States for centuries. Originating in Africa, it was most likely brought to the new world on ships used for European exploration and colonization (Nelson 1986). As the common name suggests, </span>Aedes aegypti<span> is the primary vector of yellow fever, a disease that is prevalent in tropical South America and Africa, and often emerges in temperate regions during summer months. During the Spanish-American War, U.S. troops suffered more casualties from yellow fever transmitted by </span>Aedes aegypti<span> than from enemy fire (Tabachnick 1991).</span>
In the Stone Age people did cave drawings, and scientist now find fossil remains of dinosaurs, and of other things that are now extinct.
