Which Action Best Exemplifies the Concept of Signalling

question 54

Multiple Choice

Which action best exemplifies the concept of signalling

• A)A college student's parents, having learned that their child is short of money, send her a cheque for $1000.
• B)A woman, who is trying to win the love of a certain man, buys him a very personal gift.
• C)A grocery store maintains a policy of examining the driver's licence of everyone who writes a personal cheque to purchase their groceries.
• D)A university maintains a policy of considering for admission only those students who graduated among the top 10 percent of their high school class.

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Definitions:

Segmental Contractions

Segmental contractions refer to the rhythmic contraction and relaxation of segments of the intestines, aiding in the mixing and absorption of nutrients.

Small Intestine

A long, coiled section of the intestinal tract where most digestion and absorption of nutrients occurs.

Circular Folds

Series of folds on the inner surface of the intestine that increase its surface area for absorption.

Microvilli

Tiny hair-like structures on the surface of some cells that increase surface area for absorption or secretion.