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7th grade Bdy Systms
| Question | Answer |
|---|---|
| chemical change | the formation of a new substance with different properties, cannot be undone by physical means |
| circulatory system | transports nutrients and oxygen to the body |
| digestive system | breaks down food to provide nutrients and energy |
| endocrine systen | regulates the body with hormones |
| excretory system | removes waste from the body |
| external stimulus | a change in the environment outside of the organism |
| feedback mechanism | a response within a system that influences the activity of that system |
| force | a push or pull that can change the position or motion of an object/material |
| homeostasis | a body's ability to keep the internal balance of the body stable |
| integumentary system | provides protection of the body |
| internal stimulus | change within the organism |
| motion | a change in the position of an object |
| muscular system | provides movement of the body |
| nervous system | controls and coordinates the body |
| physical change | a change which alters matter without changing its chemical composition or the identity of the substance |
| reproductive system | produces offspring |
| skeletal system | provides structure and protection for the body |
| stable | balanced, unchanging |
| stimulus | a thing or event that causes a response or reaction |
| system | interacting, interrelated or interdependent elements forming a more complex whole |