The Big Five are not robust factors; sometimes researchers can find them, and sometimes not

Suppose you wanted to take control of your dreams and direct them in a way that would satisfy your own needs. According to some dream researchers, you should

a. drink warm milk before going to sleep. b. sleep with eye shades to keep out light and movement. c. learn techniques for lucid dreaming. d. learn how to prevent your eyes from moving during dream states.

A muscle fiber shortens when ___ filaments pull on stationary ___ filaments, producing a shortened fiber and a contracted muscle

a. Myosin; actin b. Actin; acetylcholine c. Acetylcholine; myosin d. Actin; myosin