As physical activity continues beyond the first few minutes, which of the following flows into the bloodstream to signal the liver to liberate its stored energy nutrients?
a. lactic acid
b. insulin
c. fatty acids
d. glucagon
e. thyroxine

What are the components of an effective weight-training program? a. conditioning, progression, generalization, overwork, balance, and recovery b. overload, progression, specificity, regularity, recovery, balance, and variety c. overwork, coordination, motivation, conditioning, regularity, and variety d. consistency, progression, rest, regression, balance, and specificity

Skin puncture techniques are useful when

Why is important to learn about the environment?