Lactose Tolerance

question 6

Multiple Choice

Lactose tolerance:

• A) was selected for in certain populations after Homo sapiens sapiens began to spread globally.
• B) was common in our earliest Homo sapiens sapiens ancestors.
• C) is a trait common to all high-altitude mountain dwellers.
• D) never offered any selective advantage to anyone.
• E) is necessary for the efficient digestion of alcohol and grain-based food items.

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Definitions:

Social Smiling

The act of smiling in response to interacting with others, typically developing around two months of age in infants as a means of communication.

Nonverbal Encoding

The process of communicating information without the use of spoken words, through gestures, facial expressions, and body language.

Amygdala

A part of the brain involved in processing emotions, fear responses, and emotional memories.

Hippocampus

A region of the brain important for learning and memory formation.