Question

1. what was the impact of the columbian exchange on the ecosystems of the new world?

a. introduction of non - native species that altered the environment

b. creation of new trade routes

c. preservation of native species and ecosystems

d. expansion of native agricultural practices

Explanation:

To determine the impact of the Columbian Exchange on New World ecosystems, we analyze each option:

• Option a: The Columbian Exchange introduced non - native species (like horses, cattle, and new plants) to the New World. These non - native species often outcompeted native species, changed food webs, and altered the environment. This is a direct impact on ecosystems.
• Option b: The creation of new trade routes is an economic and geopolitical impact, not an impact on ecosystems.
• Option c: The Columbian Exchange did not preserve native species and ecosystems. In fact, the introduction of non - native species and diseases (from the Old World) often led to the decline of native species.
• Option d: The Columbian Exchange led to the introduction of new agricultural practices from the Old World (like European farming methods) rather than the expansion of native agricultural practices.

Answer:

a. Introduction of non - native species that altered the environment