If the predicted score for a person with a predictor variable score of 1 is 19.5 and for a person with a predictor variable score of 2 is 21.5, the regression coefficient is __________. (Give a number.)

The ________ labeling method uses chemicals that are taken up by dendrites and then transported through axons toward terminal buttons

a. retrograde b. axoplasmic c. anterograde d. heterosynaptic e. homosynaptic

What does synaptic transmission require (in the great majority of cases)?

a. Synthesis of a new protein b. Electrical transmission c. Release of a chemical d. Mechanical vibration