Unit 2 Flashcards

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1
Q

Chemical change

A

The formation of a new substance with different properties; cannot be undone by physical means.

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2
Q

Circulatory system

A

Transports nutrients and oxygen to the body.

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3
Q

Digestive system

A

Breaks down food to provide nutrients and energy. `

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4
Q

Endocrine system

A

Regulates the body with hormones.

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5
Q

Excretory system

A

Removes waste from the body.

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6
Q

External stimulus

A

A change in the environment outside of the organism.

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7
Q

Feedback mechanism

A

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

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8
Q

Force

A

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

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9
Q

Homeostasis

A

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

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10
Q

Integumentary system

A

Provides protection of the body

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11
Q

Internal stimulus

A

A change within the organism.

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12
Q

Motion

A

A change in the position of an object.

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13
Q

Muscular system

A

Provides movement of the body.

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14
Q

Nervous system

A

Controls and coordinates the body.

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15
Q

Physical change

A

A change which alters matter without changing its chemical composition or the identity of the substance.

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16
Q

Reproductive system

A

Produces offspring.

17
Q

Respiratory system

A

Exchanges oxygen and carbon dioxide.

18
Q

Skeletal system

A

Provides structure and protection for the body.

19
Q

Stable

A

Balanced; unchanging.

20
Q

Stimulus

A

A thing or event that causes a response or reaction.

21
Q

System

A

Interacting, interrelated, or interdependent elements forming a more complex whole.