When a neuron is at rest, what is primarily responsible for moving potassium ions into the cell?
a. concentration gradient
b. an electrical gradient
c. the sodium-potassium pump
d. both the sodium-potassium pump and electrical gradient
d
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Polygamy is
a. practiced worldwide. b. most common in societies where women have little access to education. c. most common in societies where women have little political power. d. all of these.
Which stage of memory allows us to perceive motion pictures as seamless and connected images?
a. short-term memory b. long-term memory c. contextual memory d. sensory memory
Any stimulus, such as meat powder, that without learning will automatically elicit an unconditioned response is called a(n) __________
a) conditioned stimulus. b) conditioned reflex. c) unconditioned stimulus. d) neutral stimulus.
Which of these is a degenerative and irreversible brain disease that results in loss of intelligence, memory, and general awareness?
a) PKU b) narcolepsy c) fragile X syndrome d) Alzheimer's disease