A hormone is a chemical substance produced by a gland, carried by the blood, which alters activity of one or more specific targets.
Una hormona es una sustancia química producida por una glándula, transportada por la sangre, que altera la actividad de uno o más objetivos específicos.
| Front | What is a hormone? |
|---|---|
| Back | A chemical substance produced by a gland, carried by the blood, which alters activity of one or more specific targets. |
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