Which of the Following Statements About Natural Killer Cells Is

question 52

Multiple Choice

Which of the following statements about natural killer cells is FALSE?

• A)They destroy virus-infected cells.
• B)They destroy tumor cells.
• C)They destroy cells lacking MHC I.
• D)They are stimulated by an antigen.
• E)None of the answers are correct;all of these statements are true.

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Definitions:

Hold-Off Diaphragm

The parking brake pancake in an air brake spring brake chamber; must be actuated to release the parking brakes.

Slack Adjuster

A device in air brake systems that adjusts the brakes as they wear to maintain proper brake performance.

Slack Adjuster

A component in air brake systems for vehicles, primarily trucks and buses, that automatically adjusts the brakes as they wear to maintain proper brake performance.

Brake Torque

The force applied by the braking system to slow or stop a vehicle, typically measured in Newton meters (Nm) or foot-pounds (ft-lbs).