Compared to electrical conduction, what is the advantage of action potentials in the nervous system?
a. Action potentials can jump from one axon to another
b. Action potentials travel both forward and backward in an axon.
c. Action potentials travel more rapidly.
d. Action potentials travel without loss of strength.
d
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Because of process loss, actual output rarely equals potential output.
a. True b. False
The small gap between neurons that facilitates neurotransmitter activity is called the
a. terminal gap. b. fluid cleft. c. synapse. d. reabsorption zone.
Exposure to radiation during pregnancy is a type of
a. environmental hazard. b. engrossment experience. c. sexually transmitted disease. d. cultural and historical variation.
Children in which type of families tend to eat fewer fruits and vegetables and have fewer opportunities for physical activity?
A) poor families B) wealthy families C) educated families D) East Coast families