Which strategy is the best way of lessening the risk of developing cancer? a. drinking enough water, b. eating a low fiber diet, c. avoiding tobacco, d. cancer can not be prevented

Which of the following is an important part of good posture? a. slumped shoulders b. arched back c. feet shoulder-width apart d. belly out

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.

Why mature red blood cells has no nucleus