Which best describes how blood pressure is measured and why is it important

What would happen if you ate the number of calories of someone who is much taller and more active than you are?

Wjat are substances intentionally added to food to produce a desired effect?

*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