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3 Cards in this Set

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                                   GLAND

GLAND

A group of cells that prepare and release a chemical for use by the body



A group of cells that......

VACCINE

VACCINE

A weakened or inactive version of a pathogen that stimulates the body's production of antibodies which can destroy the pathogen

A weakened or inactive version...

HORMONE

HORMONE

A chemical released in the bloodstream that sends signals to specific cells, causing them to change their behavior in specific ways

A chemical released in the........