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Unit 8 vocabulary
unit8
Term | Definition |
---|---|
Cell | The smallest functional unit of living things. |
Tissue | A group of similar cells working together to perform a specific function. |
Organ | Structure that is composed of different kinds of tissue. |
Organ System | A group of organs that work together to perform a major function. |
Structure | The way something is built or how its parts are arranged. |
Function | The job something does or the process it carries out. |
Homeostasis | The body's tendency to keep an internal balance. Process of maintaining equilibrium in organisms. |
Stimulus | Something inside or outside an organisms body that causes the organism to react in some way. |
Response | The action or change in behavior that occurs as the result of a stimulus. |
Adrenaline | A chemical produced in the body that gives you a burst of energy and causes protective mechanisms to occur. |
Stress | The reaction of your body and mind to threatening, challenging, or disturbing events. |
"Fight or Flight" | The reactions caused by stress when adrenaline prepares the body to protect itself. |