The Ability to Tolerate Lactose Throughout Life Most Likely Arose

question 17

Multiple Choice

The ability to tolerate lactose throughout life most likely arose in ________.

• A)populations that live in cold climates
• B)populations that live in wet climates
• C)cultures that keep dairy herds
• D)Native Americans

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Definitions:

Exosystem

Community institutions and settings that indirectly influence the child, such as the school board and the parents’ workplaces (from the Greek exo, meaning “outside”).

Ethologists

Specialists who study animal behavior in natural environments, focusing on how animals interact with each other and their surroundings.

Evolution

The biological process by which species of organisms change over time through variation, genetic mutation, and natural selection.

Environment

The surroundings or conditions in which a person, animal, or plant lives or operates, including natural, social, and cultural factors.