A neuron's membrane that maintains a charge difference across its surface in which the inside is more negative than the outside is called ________
A) action potential B) graded potential C) summation D) resting potential
Answer: D
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The volume of air normally breathed in and out of the lungs in a single breath at rest is referred to as the _____ volume.
A. tidal B. total C. reserve D. inspiratory reserve E. expiratory reserve
If the ? of surrounding soil is higher than that in living root epidermal cells, then water should
a. leave the root cells, making them flaccid. b. enter the root cells, making them turgid. c. leave the root cells, making them turgid. d. enter the root cells, making them flaccid. e. none of these accurately describe water movement.
In a scientific experiment, the investigator measures the response of the ________ variable(s)
A. dependent and independent B. control group C. dependent D. standardized
The total number of deaths in a population due to a disease is the ________ rate.
A. mortality B. endemic C. pandemic D. incidence E. morbidity