The absolute refractory period occurs because
a. the cell is hyperpolarized, requiring a larger than normal stimulus in order to form another action potential.
b. it takes time for the sodium-potassium pumps to return ion concentrations to the normal resting state
c. only one action potential at a time can travel the length of an axon.
d. sodium channels cannot reopen until the cell regains its resting potential.
d
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A researcher surveys a sample of n = 200 college students and asks each person to identify his or her favorite movie from the past year. If the data were organized in a frequency distribution table, the first column would be a list of movies
Indicate whether the statement is true or false
The method section of an APA-style research report ____
a. provides a general description of the study b. provides enough detail for replication c. includes a results subsection d. gives a report of the results
Even though Meghan and Rennie are sisters, their bodies have different set points. Their individual set points for maintaining homeostasis are affected by all of the following except
A. activity of the ventromedial nucleus. B. body weight and food intake. C. androgen levels. D. activity of the lateral hypothalamus.
According to Richard Lazarus, one's evaluation of the personal meaning of a stimulus or situation is known as
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