USA HISTORY

Detailed explanation-1: -Domestic turkeys come from the Wild Turkey (Meleagris gallopavo), a species that is native only to the Americas. In the 1500s, Spanish traders brought some that had been domesticated by indigenous Americans to Europe and Asia.

Detailed explanation-2: -The plants involved in the Columbian Exchange dramatically changed both the economy and culture of the New and Old Worlds. European explorers returned home with New World plants, such as: beans, squash, chili peppers, sunflowers, peanuts, tomatoes, sweet potatoes, avocado and pineapple.

Detailed explanation-3: -The Columbian Exchange brought horses, cattle, sheep, goats, pigs, and a collection of other useful species to the Americas. Before Columbus, Native American societies in the high Andes had domesticated llamas and alpacas, but no other animals weighing more than 45 kg (100 lbs).

Detailed explanation-4: -The list of infectious diseases that spread from the Old World to the New is long; the major killers include smallpox, measles, whooping cough, chicken pox, bubonic plague, typhus, and malaria (Denevan, 1976, p. 5).