Global Positioning System (GPS)units

question 4

Multiple Choice

Global Positioning System (GPS) units

• A)recently found that the summit of Mt.Everest is 8850 m above sea level.
• B)are accurate to 150 m.
• C)are not used by the military and surveyors.
• D)can be used for crops to germinate.
• E)allow automobiles to drive themselves.

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Definitions:

Sodium Channels

Proteins located in cell membranes that facilitate the passage of sodium ions into and out of the cell, essential for processes such as nerve impulse transmission.

Action Potential

A temporary reversal of an electric membrane potential, which propagates along the membrane of a nerve cell or muscle cell.

Cerebrospinal Fluid

Clear fluid that surrounds the brain and spinal cord and fills ventricles within the brain.

Ventricles

Chambers of the heart that receive blood from the atria and pump it out to the lungs and the rest of the body.