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The branch of science that deals with the biological basis of behavior and mental phenomena
The network of nerve cells and fibers that transmits nerve impulses between parts of the body.
the body's chemical communication system; a set of glands that secrete hormones into the bloodstream
A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
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