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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 |