Although Many Chimpanzees Live in Environments Containing Oil Palm Nuts

question 31

Multiple Choice

Although many chimpanzees live in environments containing oil palm nuts, members of only a few populations use stones to crack open the nuts. The likely explanation is that ________.

• A) the behavioral difference is caused by genetic differences between populations
• B) members of different populations have different nutritional requirements
• C) the cultural tradition of using stones to crack nuts has arisen in only some populations
• D) members of different populations differ in learning ability

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Definitions:

Repetitive Transcranial Magnetic Stimulation

A noninvasive procedure using magnetic fields to stimulate nerve cells in the brain to improve symptoms of depression.

Deep Brain Stimulation

Procedure to treat depression in which electrodes are surgically implanted in specific areas of the brain and connected to a pulse generator that is placed under the skin and stimulates these brain areas.

High-Intensity Magnetic Pulses

A non-invasive treatment method using magnetic fields to stimulate nerve cells in the brain for various conditions.

Electrodes

Conductive materials that allow the flow of electric current, used in various applications including medical devices and batteries.