Synapses can occur
a. only between neurons.
b. on the smooth surface of a dendrite.
c. only where there is myelin.
d. on dendritic spines.
e. between neurons and the membranes of muscle and gland cells.
e. between neurons and the membranes of muscle and gland cells.
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Which of the following characterizes the association between testosterone levels and men's levels of sexual appetite?
a. There is no association. b. Very low levels of testosterone predict inhibited desire. c. Very high levels of testosterone predict excessive interest. d. There is a nearly one-to-one ratio between testosterone levels and sexual desire.
Dalton is a six-month-old baby who is watching the faces of his parents and their friends as they sit around the dinner table. From his mother's arms, he has a good view of each diner's expression. Which dinner guest would probably draw the most of Dalton's attention?
a. Linda, whose face is really expressing no emotion at all b. Melvin, who is not terribly engaged in the conversation but is not unhappy either c. Stan, who looks irritated because his wife keeps interrupting him d. Barb, who is happy to be chatting with her friends
Diseases such as multiple sclerosis usually involve a deterioration of what part of a neuron?
A. cell body B. dendrites C. myelin sheath D. axon E. nucleus
Using Latané & Darley's 5-Step Model of Helping, explain what you should do if you are in emergency situation and need help.
What will be an ideal response?