Carbon is the basis for life on earth because it-
a. forms many organic molecules
b. produces water molecules
c. stores information
d. is part of most inorganic molecules

digital rectal exam (dre) a digital rectal exam (dre) is a test for both men and women. it allows a doctor to check the lower rectum, pelvis, and lower belly for cancer and other health problems, including: prostate cancer in men.

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.