An organism that causes disease

What is the number one thing you can do as a teenager to help prevent cancer, heart disease and strokes?

These tiny particles that may be plant or animal in origin - so small that they may only be seen under a microscope cause infectious diseases

A stuffy nose, sore throat or fever is your body trying to fight an infection - these are considered _________________.

These attack individual cells - responsible for chicken pox, the common cold, measles and AIDS

These are single celled organisms that come in many different shapes. Not all are harmful, in fact you need some good ones in your body

Our body is designed with a physical defense system that can also be called our

Any attribute, characteristic or exposure of an individual that increases the likelihood of developing a disease of injury is a...

What are some hereditary conditions that might be passed down to you?