At the National Zoological Park in Washington, D

question 42

Multiple Choice

At the National Zoological Park in Washington, D.C., a polar bear suffered a broken tooth, and keepers needed a safe way of treating the problem. The bear was rewarded first for sticking its nose through a slot in the cage door, then for allowing a keeper to lift its lip and touch its teeth. Finally, a veterinarian was able to treat the damaged tooth while the bear waited placidly for its familiar reward. This is an example of _______.

• A) positive punishment
• B) shaping
• C) negative reinforcement
• D) secondary learning

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Definitions:

Microglia

Specialized cells in the brain and spinal cord that act as the main form of active immune defense in the central nervous system.

Ventricles

Cavity or space within the brain filled with cerebrospinal fluid that helps protect the brain and spinal cord and provides nutrients.

Cerebrospinal Fluid

Cerebrospinal fluid is a clear, colorless body fluid found in the brain and spinal cord, providing cushioning and maintaining a stable environment.

CNS

Refers to the central nervous system, consisting of the brain and spinal cord, which serves as the processing center for the nervous system.