Ineed this quick
which step happens first when a cavity forms? a the enamel of a tooth breaks down. b small holes are created. c plaque builds up. d acids are formed on the teeth.

How could a person communicate directly with leaders about community health issues

True or false: determining the source and motive of an ad for a health product will you decide whether the ad is a reliable source of health information.

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive