Electrical impulses reach the muscle cell's interior to alter the cell's chemical environment via what network?

________ Each nerve ending is specialized according to a type of sensory reaction

Indicate whether the statement is true or false

What information should be noted about unusual odors during a fire investigation?

A. If the odor was not present during the fire B. If the odor has an aroma of something similar to smoke C. If the odor can be detected after coming out of the smoke D. If the odor is more than 20 feet (6.1 m) outside of the structure