Ch 12 Test

Organisms that cause disease are called __________________.

• hosts

• pathogens

• Phagocytes

• Flagellum

What sort of pathogen causes influenza (flu)?

• A bacterium
• A virus
• A fungus
• A protist

A disease that can pass from one organism to another is a(n)

• pathogen.

• infectious disease.

• toxin.

• bacteria.

Any agent that causes a disease.

• germ

• pathogen

• micro-organism

• all of the above (different terms that mean the same thing)

The method in which a disease is contracted or the way a person becomes infected.

• symptom

• transmission

• treatment

• prevention

The physical or psychological changes caused by a disease.

• symptom

• transmission

• treatment

• prevention

An organism that lives on or in it's host to survive.

• bacteria

• fungus

• parasite

• virus

A microscopic, single celled microorganism that thrives in diverse environments. Can be helpful and harmful to humans.

• parasite

• bacteria

• fungus

• virus

A microscopic agent that causes infection and requires a host to replicate.

• bacteria

• virus

• parasite

• fungus

a particular disease that has a large outbreak in an area and afflicts many people

• Endemic diseases

• Epidemic diseases

• Pandemic diseases