Figure 31-2 Use the Figure to Answer the Corresponding Question(s)

question 23

Multiple Choice

Figure 31-2
Use the figure to answer the corresponding question(s) .
-The nervous system of many species of flatworms:

• A)consists of a single, large ganglion in the anterior enD.
• B)is sometimes referred to as tubelikE.
• C)includes two dorsal nerve cords.
• D)is diffuse and netlikE.
• E)is a "ladder-type."

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Definitions:

Physical Attractiveness

The degree to which a person's physical features are considered aesthetically pleasing or beautiful by others.

Frequency of Dating

How often an individual goes on dates, indicating their level of social or romantic activity.

Altruism

The selfless concern for the well-being of others without expectation of reward or benefit.

Reciprocity Norm

A social norm that expects individuals to help those who have helped them, ensuring mutual aid and cooperation in human societies.