Antibiotics kill harmful bacteria or prevent bacteria from reproducing.

The concept of ensures that wounded soldiers receive treatment based on their severity of their wounds rather than their seniority

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.

What kind of wound occurs the skin scrapes against a hard surface and tiny blood vessels break in the outer layer of the skin