Respuesta :
Answer:
Christopher Columbus
Explanation:
Christopher Columbus an Italian navigator started the widespread of global exchange that consisted of animals, people, plants, culture, technology, and ideas between the continents of America, West Africa, and the Old World in the 15th and 16th centuries. This act by him is now referred to as Columbian exchange, or Columbian interchange. His activities led to changes in agriculture which significantly altered global populations.