What were two things that were introduced to the old world during the columbian exchange?

What happened after tunstall was murdered? how did billy the kid react to theviolence?

Supporters of using the atomic bomb at the end of world war ii believed that a japan might win the war if the bomb was not used. b americans were tired of war and the us should end it quickly. c russia was developing a bomb and the us needed to use it first. d japan was developing a bomb and the us needed to use it first.

Identify they difference in plant domestication between mesopotamia and mesoamerica during the neolithic revolution