Figure 23-2 Use the Figure to Answer the Corresponding Question(s)

question 48

Multiple Choice

Figure 23-2
Use the figure to answer the corresponding question(s) .
-The phenetic system is based primarily on:

• A) known evolutionary relationships.
• B) fossil evidence.
• C) the number of shared characteristics.
• D) the number of ancestral characteristics.
• E) both ancestral and shared characteristics.

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Definitions:

Placebo Learning

The phenomenon where improvements in a person's condition result from the belief in the efficacy of a treatment that has no therapeutic benefit.

Brainstem

The part of the brain connecting the spinal cord with the forebrain and cerebrum, responsible for controlling several basic life functions.

Dorsal Raphe Nucleus

A nucleus located in the brainstem involved in the release of serotonin and implicated in the regulation of mood, sleep, and anxiety.

Learned Helplessness

An instance where a person is overwhelmed by feelings of helplessness, caused by either a distressing event or continual lack of success.