Answer:
there were few large animals that could be trained. Peoples of the Americas lacked sources of protein, manure, and power that were widely available to societies in the Afro-Eurasian world. They could not depend on domesticated animals for meat, agricultural peoples in the Americas relied more on hunting and fishing. Americas lacked the rich cereal grains that were widely available in Afro-Eurasia. Instead they had maize or corn, first domesticated in southern Mexico by 4000 to 3000 b.c. Process to agriculture took 3,500 years in Mesoameric
Explanation:
