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Pathogenic bacteria are not the only causative factors for periodontal disease. Host response to the pathogenic bacteria is a major factor in the development of periodontal disease.

Which of the following is MOST effective in controlling the bacteria in a dental plaque biofilm?

The process by which leukocytes engulf and digest microorganisms is known as _____________________.

Simplify the following expression with radical notation.  

Select the true statement(s) regarding a virtual circuit.

Radio Frequency (RF) signals propagate as an electromagnetic (EM) wave.  Optical signals behave as both a wave and as a particle as it propagates.  Although optical waves possess this “wave-particle duality”, they are still considered EM waves.

Identify the device that combines multiple time slots or frequency channels into an aggregate for transmission.

A telephone is an example of:

Select the correct statement(s) regarding electrical and electromagnetic (EM) information/signal waves. 

Given the following parameters, determine the correct sinusoidal equation for a sine wave:  f=1kHz, A=2v, φ (phase angle)= -π radians.