What does the type of animals and plants brought to the new world demonstrate about the needs of pre-columbian civilizations? a) pre-columbian civilizations did not have access to egg-laying animals, so europeans brought them. b) pre-columbian civilizations did not practice small-scale farming, so europeans brought them. c) pre-columbian civilizations had an abundance of animals for food, but europeans also wanted to continue using their traditional animals for food. d) pre-columbian civilizations had few animals suitable for raising and slaughtering to use for meat.