According to Sigmund Freud, _____ are strategies used by the ego to help reduce stress and anxiety

When the neuron is inactive, we say it is in a resting state. When it is in such a state,

a. we say the neuron is depolarized. b. potassium is being actively pumped out of the cell. c. it does not have the capacity to respond to stimulation. d. the fluid inside the neuron is slightly negative electrically, relative to the fluid outside the neuron.

A problem with cross-sectional studies is that they ______

a. take longer to run than longitudinal studies b. don't distinguish age differences from cohort differences c. are less trustworthy than either biographical or longitudinal studies d. don't distinguish differences among age groups