Most body systems are similar in males and females. one that differs
between the sexes is
a. nervous
b. reproductive
c. skeletal
d. endocrine

What type of disease causing organism is so small you must use a microscope to see it? a) carryon b) pathogen c) protozoa d) vices

The frequency in wich you perform certain exercise depends on the blank of the exercise

Which of these is a fact about performance enhancing drugs? a. steroids lack addictive properties. b. steroids use can cause dangerous side effects. c. it is safe to use steroids when working out. d. a person can get in legal trouble for using steroids.