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In order to prevent a duct-mounted electric heater from being energized when the fan is not on, a(n) ____________________ should be used.
Modified Sweat Glands
Specialized sweat glands such as mammary glands which serve additional functions beyond thermoregulation, including the secretion of milk.
Sebaceous Glands
Small oil-producing glands present in the skin of mammals, secreting sebum to lubricate skin and hair.
Testes
The male reproductive glands that produce sperm and testosterone.
Spermatic Cord
A bundle of fibers and tissues forming a cord-like structure that runs through the abdominal region to the testes.
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