A Researcher Hangs a Mobile Over the Crib of 4-Month-Old

question 27

Multiple Choice

A researcher hangs a mobile over the crib of 4-month-old Anya. When the researcher attaches Anya's foot to the mobile with a long cord, Anya can, by kicking, make the mobile turn. The turning of the mobile is an example of

• A) a reinforcer.
• B) punishment.
• C) an unconditioned stimulus.
• D) an conditioned response.

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Definitions:

Mouth

The opening in the body of most animals through which food is ingested.

Villi

Small, finger-like projections that extend into the lumen of the small intestine, increasing its surface area for nutrient absorption.

Small Intestine

A part of the gastrointestinal tract following the stomach and duodenum, where most of the end absorption of nutrients and minerals from food takes place.

Digestive System

The complex system of organs and glands responsible for the breakdown and absorption of food, extracting nutrients and eliminating waste.