In the preschool years, many complex movements, such as tracking a ball and kicking it during a soccer game, are built up from combinations of simpler movements known as ____________

Depression is related to

a. the brain neurotransmitters dopamine, norepinephrine, and serotonin. b. a genetic predisposition. c. low brain wave activity of the left frontal lobe. d. a viral infection. e. All of the above are correct.

The key to any online relationship is to ____

a. take it slow and really get to know your partner as much as you can b. immediately talk about something relevant and personal c. discuss relationship issues and sexuality as soon as possible d. use conversations to establish status