| A | B |
|---|
| exercise | activity that trains or improves the body or the mind |
| energy | the strength or eagerness to work or do things |
| muscle | a tissue in the body that can be tightened or relaxed to make the body move |
| pulse | the rythmic beat of the arteries caused by the beating of the heart |
| plasma | the clear, yellow liquid that forms the watery part of the blood |
| antibody | a substance produced by the body's white blood cells to destroy or weaken germs one place to another with a pump |
| germ | a tiny particle that can cause a disease |
| bacteria | tiny living cells that can cause diseases |
| infection | a disease that is caused by germs entering the body |
| medicine | a drug or other substance that is used to prevent or cure disease or to relieve pain |
| immune system | the system that protects the body from diease; in humans, this is made of white blood cells and antibodies |
