The Columbian Exchange Led to Which of the Following

question 23

Multiple Choice

The Columbian Exchange led to which of the following?

• A) Afro-Eurasian farmers became less competitive compared to American farmers.
• B) Syphilis spread throughout the western hemisphere.
• C) Corn (maize)replaced some traditional crops in China and Africa.
• D) The Afro-Eurasian landscape came to look more like the Americas.

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Definitions:

Brassinosteroids

A class of growth-promoting, steroid hormones in plants, influencing cell elongation, division, and development.

Steroids

A class of lipophilic organic molecules that play diverse roles in the body, including as hormones and components of cell membranes.

Ethylene

A gaseous plant hormone involved in various processes such as ripening of fruits, flowering, and leaf abscission.

Leaf Abscission

The process by which a plant sheds its leaves, usually in response to environmental signals, to conserve resources or protect itself from harsh weather conditions.