Rings of Muscle in the Digestive Tract That Can Open

question 11

Multiple Choice

Rings of muscle in the digestive tract that can open and close,regulating the movement of food into or out of parts of the digestive system,are

• A) rumens.
• B) sphincters.
• C) chymes.
• D) villi.
• E) uvulas.

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Definitions:

Paul Ekman

A psychologist who is well-known for his work in the psychology of emotion and facial expression.

Survival Value

The degree to which a behavior or trait contributes to an organism's likelihood of survival and reproduction in a given environment.

Behavior Feedback Effect

describes how the expression of a behavior can influence and reinforce the feelings and attitudes associated with that behavior.

Facial Feedback Effect

The hypothesis that facial movements can influence emotional experiences, suggesting that smiling can make you feel happier.