John and Sue are emotionally intimate and physically attracted to each other; however, neither of them thinks that they will stay together for a long period of time. They are experiencing ____ love.?

Neuromodulators differ from neurotransmitters in that

a. neuromodulators mainly influence the activity of nearby neurons; neurotransmitters mainly influence the activity of distant neurons. b. neurotransmitters affect the activity of many thousands of neurons; neuromodulators affect the activity of only a single neuron. c. neuromodulators are released into the general circulation of the brain; neurotransmitters are released into more confined areas of the brain. d. neurotransmitters mainly influence the activity of the glands; neuromodulators mainly influence the activity of muscles and other neurons. e. neurotransmitters are released into the general circulation of the brain; neuromodulators are released into more confined areas of the brain.

According to the article Zipping Up the Genes about twins reared apart, the correlations between the

personalities of the monozygotic twins were (a) positive and high (b) negative and moderately high (c) negative and very high (d) effectively zero