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Automatic Doors Require a Motor That Pushes a Rod That

Question 178

Multiple Choice

Automatic doors require a motor that pushes a rod that opens the door; the door is held in place by a hinge and a doorframe, and a separate controller pulls the door back to the closed position.The rod pushing open the doorframe is most analogous to


A) tendons.
B) ligaments.
C) extensors.
D) flexors.
E) cartilage.

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