Are caused by the body attacking itself.
a. immune diseases
b. chromosomal diseases
c. single-gene diseases
d. autoimmune diseases

Bacteria can cause different infections, check all that apply. a. sore throat b. measles c. ear infection d. flu e. cavities

When a freind is not tellig you everything you should a: bug them till they tell you b: ask them polietly to tell you c; stay silent your whole life d leave them they will tell you on there own time

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3