Professor Michaels is explaining to his students that, when the neuron is at rest, ______ is mostly responsible for the movement of potassium ions out of the cell.
A. potassium's electrical gradient
B. potassium's concentration gradient
C. the sodium-potassium pump
D. sodium's electrical gradient
Answer: B
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A group of researchers wanted to investigate allegations of sexual harassment on a company's assembly line. To make their observations, the researchers took jobs working on the assembly line and pretended to be new employees. In this example, the researchers were using
a. naturalistic observation. b. correlational research. c. survey research. d. the case study method of research.
The belief that others will or should take the responsibility for providing assistance to a person in need is called
a. the bystander effect. b. diffusion of responsibility. c. pluralistic ignorance. d. audience inhibition.
A newly discovered substance in the brain has a chemical structure similar to the active ingredient in marijuana. This neurotransmitter is:
A. anandamide B. dopamine C. serotonin D. epinephrine
________________ refers to the purity or richness of a color perceived by the eye
a) Brightness b) Contrast c) Hue d) Saturation