Which of the following is true about muscle tone?
a. it increases with age.
b. it describes the relaxing of some muscles.
c. it is responsible for keeping the back and legs straight when you re relaxed.
d. it decreases as you exercise more.

For years, tobacco products have included a message from the surgeon general warning the negative effects of tobacco use. at this time, a push is being made for the fda to begin to regulate e-cigarettes in order to mandate warning labels and age restrictions. write a paragraph that identifies 2 health problems that have been linked to nicotine and/or tobacco use. you should include statistics demonstrating the incidence of problems among smokers and provide a resource citing where you found the information provided. (remember from unit 1 what makes a resource reliable.) due in 2