What do melanocytes produce? -a type of protein used to form tough tissues
-a pigment that gives skin its color
-a protein found in skin that provides firmness and strength
-a waxy substance needed for hormone production

Aproper cool-down routine includes which of the following? a). eating a good-sized meal b. five to 10 minutes of slow walking or jogging and stretching c). less than 5 minutes of cool-down stretches d). sprinting or other strenuous exercise