The mixing of plants, animals, and microorganisms that occurred after europeans arrived in the americas is known as. a. the columbian exchange.. b. global interdependence.. c. triangular trade.. d. global mixing.

The correct answer is A) The Columbian Exchange.

The Columbian exchange is also termed as the Columbian interchange.

It  is described as the widespread transfer of animals, culture, plants, technology, human populations, and ideas of people between the West Africa, America, and the Old World that took place in the 15th and 16th centuries.

Thus, A) is the right answer.