Fats should account for about ________ percent of the daily caloric intake.
A. 10
B. 5
C. 30
D. 60
E. 80
Answer: C
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For inspiration to occur, barometric pressure must be __________ alveolar pressure.
A) greater than B) less than C) equal to
A change in a membrane potential from -70 mV to -60mV is an example of
a. depolarization b. hyperpolarization c. polarization d. repolarization e. zero potential
Peristalsis is a process in which
A. the entire esophagus contracts at once. B. food is mechanically digested as it is repeatedly squeezed in a closed organ. C. food is squeezed forward through the digestive tract. D. food can move forward or backward. E. contraction can only occur when food is present.
A motor neuron typically receives input from neurons that originate in various areas of the brain. This type of circuit is a
A) divergent circuit. B) convergent circuit. C) serial processing circuit. D) parallel processing circuit. E) reverberating circuit.