Match Each Statement with the Correct Item Below

question 33

Multiple Choice

Match each statement with the correct item below:
-motor unit

• A)produced by the skeletal system
• B)consists of a motor neuron plus all the muscle fibers it stimulates
• C)make up the skeletal system
• D)cells become completely different than what they were when they originated
• E)reaction to invasion by an infectious agent

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Definitions:

Reactive Compounds

Substances that readily engage in chemical reactions with other materials due to their unstable electron configurations.

Stratosphere

The layer of the Earth's atmosphere just above the troposphere, known for its ozone layer which absorbs and scatters harmful ultraviolet sunlight.

CFCs

Chlorofluorocarbons, man-made chemical compounds once commonly used in refrigeration and aerosols, known to deplete the ozone layer.