What is the immune system?

What is a pathogen?

What are some examples of pathogens?

Are all bacteria bad?

What are white blood cells?

What are white blood cells also called?

What is the bodies first line of defense against germs?

What is the bodies second line of defense against germs?

How does your body know to fight?

What is the first step of the immune system?

What is the second step of the immune system?

What is the third step of the immune system?

How are they attacked?

What is the fourth step of the immune system?

What do B-cells do?

What do macrophages do?

What do Cytotoxic T-cells do?

What do Helper t-cells do?

What else do macrophages do?

What else do Helper t-cells do?

What is the ratio of one white blood cell to body cells.

What are the 3 specific immune responses?

What is the inflammatory response?

What four nonspecific defenses are caused by pathogens invading the body?

What three effects does increased blood flow have on an infection site?

What effect do fevers have on many disease-causing bacteria?

What does the release of the chemical histamine cause?

What are vaccines?

What do vaccines do?

What is maternal immunity?

What are examples of non-infectious diseases?

What causes a non-infectious disease?

What is an infectious disease?

What are some examples of nutritional diseases?

What do genetic diseases do?

What are some examples of genetic diseases?

What are the most common types of cancers?

What are examples of auto-immune diseases?

What are vectors?

What are common types of vectors?

What do flies transmit?

What do rats and mice transmit?

What do mosquitoes transmit?

What are the 2 main types of leukocytes?

What do phagocytes do?

What do lymphocytes do?