some more 7th grade science!!!!!!!!!!!!!!!!!!!!!!!!!!!! Flashcards

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1
Q

a formation of a new substance with different properties ;can not be undrone by physical means.

A

chemical change

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2
Q

transports nutrience and oxygen to the body.

A

circulatory system

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3
Q

breaks down food to provide nutrience and energy.

A

digestive system

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4
Q

regulates the body with hormones

A

endocrine system

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5
Q

removes waste from the body

A

excretory system

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6
Q

a change in the environment outside of the organism.

A

external stimulus

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7
Q

a response within a system that influences the activity of the that system

A

feedback mechanism

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8
Q

a push or pull that can change the position or motion of an object/material.

A

force

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9
Q

the body’s ability to keep the internal balance of body stable.

A

homeostasis

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10
Q

provides protection of the body

A

integumentary

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11
Q

a change within the organism

A

internal stimulus

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12
Q

a change in the position of an object

A

motion

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13
Q

provides movement of the body

A

muscular system

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14
Q

controls and coordinates the body

A

nervous system

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15
Q

a change which alters matter without changing its chemical compositions or the identity of the substance.

A

physical change

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16
Q

produces offspring

A

reproductive system

17
Q

exchanges oxygen and carbon dioxide.

A

respiratory system

18
Q

provides structure and protection for the body.

A

skeletal system

19
Q

balanced;unchanging

A

stable

20
Q

a thing or event that causes a responce or reaction

A

stimulus

21
Q

interacting,interrelated, or interdependant elements forming a more complex whole.

A

system