A group of similar cells that perform the same function.

A structure that is composed of different kinds of tissue.

A group of organs that work together to perform a major function.

The body's tendency to keep an internal balance.

The reaction of your body to potentially threatening, challenging or disturbing events.

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Human Body

Term	Definition
Tissue	A group of similar cells that perform the same function.
Organ	A structure that is composed of different kinds of tissue.
Organ System	A group of organs that work together to perform a major function.
Homeostasis	The body's tendency to keep an internal balance.
Stress	The reaction of your body to potentially threatening, challenging or disturbing events.