People who can perform seemingly impossible feats of memory because of their highly developed memory skills are known as ________

What does having an immovable mind entail?

a) Learning to follow your heart and not take advice from others b) Coexisting with one's feelings without reacting to them c) Remaining calm regardless of circumstances d) Spending time every day reviewing past actions

Hormones are produced primarily by ________

a. epithelial cells. b. stem cells. c. glands. d. neurons.