Which of the following is not true regarding the columbian exchange?
a. rats and cats consumed ground-dwelling birds.
b. beans, cacao, and vanilla were brought to the americas.
c. corn and cassava were brought to africa.
d. potatoes were brought to ireland.

b. Beans, cacao, and vanilla were brought to the Americas.

Explanation:

Beans, cacao, and vanilla come from the Americas.

Beans: According to scholars beans come from Mexico, studies have been done on nucleotides and point to the geographic origin of the wild form of beans to come from Mexico.

Cacao:  Cacao is a tropical fruit that originates from the cacao tree. Cultivation began in Mexico and other areas in Central America, Amazon, and the Orinoco rivers.

Vanilla: Vanilla originated from a species of orchid native to Mexico.

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