Potentially Unstable Coastlines May Be Identified by

question 5

Multiple Choice

Potentially unstable coastlines may be identified by

• A) The absence of shoreline-protection structures.
• B) Comparison of recent and older maps or aerial photographs of the area, if available from sources such as county planning office, detailed maps compiled earlier indicating the appearance of the coastline.
• C) The width of the coastline.
• D) A large amount of driftwood on the beach.

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Definitions:

Motor Neurons

Nerve cells that initiate and control movements by transmitting signals from the brain and spinal cord to muscles.

Temporal Summation

A mechanism of signal transmission in neurons where multiple signals are combined over a period of time to generate a larger response.

Muscle Fibers

Muscle fibers are the individual contractile units of muscle tissue, made up of myofibrils and encapsulated in a sarcolemma, that facilitate body movements through contraction and relaxation.

Skeletal Muscle

A type of striated muscle tissue attached to bones, responsible for voluntary movements of the body.