Alex Regularly Gives Donations of Blood to the Red Cross

question 73

Multiple Choice

Alex regularly gives donations of blood to the Red Cross because he received a life-saving transfusion when he was in a car accident two years ago.His helping behavior is best explained by _____.

• A) the concept of reciprocity
• B) reciprocal determinism
• C) social exchange theory
• D) self-perception theory

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Definitions:

Pupil Diameter

The size of the opening in the center of the iris of the eye, which varies to regulate the amount of light reaching the retina.

Hyperpolarizing

Pertains to the increase in a cell's membrane potential, making it more negative.

Photoreceptor Cell

A photoreceptor cell is a type of specialized neuron found in the retina of the eye, responsible for converting light into electrical signals that can be interpreted by the brain as visual images.

Rods

Photoreceptor cells in the retina of the eye, highly sensitive to light, which enable vision in low light conditions.