While __________ is a biological phenomenon, __________ is psychological

The distance usually 12 feet or more at which formal interactions, such as giving a speech, occur is called __________ distance

a. intimate b. personal c. social d. public

From about six weeks to about the sixth month after conception, neurons move from the center of the neural tube outward to form the brain, either sliding up long fibers extended from the glial cells or moving laterally on their own. This process is called ________

a. synapse formation b. neural differentiation c. neurogenesis d. neuronal migration