The state of being open to harm.

• Bacteria
• Vulnerability
• Epidemics
• Probability 

Micro-organisms capable of causing diseases.

• Germs
• Bacteria
• Pesticides 
• Prions

One-celled microscopic organisms (Ex: Strep Throat and Tuberculosis)

• Viruses
• Bacteria
• Cold
• Protist 

Large molecular framework that includes a protein that surrounds DNA (EX: AIDS and the flu)

• Viruses
• Bacteria
• Protists
• Prions

Small organisms that can cause disease (EX: Malaria, passed by mosquito's in tropical areas)

• Bacteria
• Viruses
• Protists
• Phylum 

Single protein causes crystallization of proteins in the nervous system, which can lead to death. (EX: Mad Cow's Disease)

• Bacteria
• Viruses
• Prions
• Protists

An __ is a disease that has spread to a large number of people 

• Epidemics
• Pandemics
• Epipen 
• Prions

"Black death" killed half the people in Europe and Asia every few centuries 

• Bubonic plague
• Ebola Virus
• Asian plague
• Zika plague

Leading cause of death in many countries and believe to have killed 90% of American Indians

• Smallpox
• Greenpox
• Largepox
• Chickpox

White plague killed 1 in 5 people

• Tuberculosis
• TD
• Lungerosis
• Aids