Toll-free calls made to a company are a form of long-distance service.

a. fx
b. ddd
c. wats
d. station-to-station

Andra has a family history of osteoporosis. her doctor advises her to eat foods rich in calcium. which foods should she add to her diet? a. fruits, especially grapes and berries b. unsaturated fats like olive and soybean oil c. beet greens, broccoli, and cheese

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes

Which is the term used for a drug that increases the activity of the nervous system