| A | B |
| bacteria | single celled, no nucleus, can be helpful, harmful, and harmless. |
| virus | not a cell, non-living, needs to invade cells to reproduce. |
| protist | single celled, genetic material in nucleus, can be helpful, harmful, and harmless. |
| immune system | Protects the body to fight and get rid of germs. |
| white blood cells | Destroy geerms. Increases in number when the body is under attack from a foreign substance. |
| red blood cells | Transports food and oxygen to all of our cells. Do not have a nucleus. |
| antibodies | Find foreign substances and attach to them so the white blood cells can attack these foreign substances. |
| resistant | When bacteria is difficult to get rid of. |
| full course | Taking all of an antibiotic on-time and completely to make sure the bacteria do not survive. |
| emerging disease | a new disease that outbreaks and spreads. |