Having a plan in case there is an emergency is only important when you are at:
a .all of the answers
b. car
c. home
d. work

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Which of the following is a health risk associated with ground-level ozone? a.cataractsb.skin cancerc.respiratory illnessd.all of the above

According to proper standing posture, from a side view, which parts of the body should be aligned? a. ear, shoulder, hip, knee, and ankle b. stomach, hip, knee, and ankle c. nose, shoulder, hip, knee d. ear, shoulder, fingers, ankle