General Science Module #15
About this set
Created by:
loverofmurray on April 20, 2011
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4 terms
Terms | Definitions |
|---|---|
 gland | a group of cells that prepare and release a chemical for use by the body |
| vaccine | a weakened or inactive version of a pathogen that stimulates the bodys production of antibodies which can destroy the pathogen |
| hormone | a chemical messenger released in the bloodstream that sends signals to distant cells causing them to change their behavior in specific ways |
| how does lymph get pumped through the lymphatic | when the muscles contract it squeezes the lymph and moves the lymph |
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