anything that can enter the body and cause a disease
a disease-causing particle containing genetic material
a reaction to injury or infection that causes swelling, redness, and pain
a type of medicine that prevents future infection of a disease
an animal or plant that lives in or on another plant or animal. For exmple, this hookworm is a __________ living under the skin.
a tiny, single-celled organism, some of which can cause disease
an organism that absorbs nutrients off of dead organisms, such a mushroom. Fungal infections can cause athletes' foot, jock itch, and
white blood cell
a blood cell whose primary job is to defend the body against disease
a change in a person's body or mind caused by a disease
The invasion of the body by a pathogen. The pathogen then spreads.
A medicine that kills bacteria