Two factors that help regulate our natural sleep/wake cycles are

a. melanin and auditory stimulation.
b. melatonin and auditory stimulation.
c. melatonin and light

d. light and blood sugar levels.

c

Psychology

You might also like to view...

Which of the following is an example of deindividuation?

a. Cyber-bullying in Internet chat rooms b. Cooperating children in Kindergarten c. Joining a sorority d. Volunteering for extra credit

Psychology

From an evolutionary standpoint, behavior results from an interaction of both

(a) experimental and correlational research (b) biological and environmental factors (c) personality and emotions (d) yourself and your immediate family

Psychology