The Integumentary System Answers

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Primary lymphoid tissues

A
are responsible for the creation and maturation of white blood cells.
B
are made up of cells that multiply uncontrollably.
C
are infected tissues.
D
are made up of a network of tubes that take in plasma that escaped from the blood and circulate it as lymph back to the heart.
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What is the function of the tonsils and adenoids?

A
They serve as a first line of defense against ingested or inhaled pathogens.
B
They create and distribute T-cells to the body.
C
They remove old blood cells from circulation.
D
They deliver oxygen to the cells of the body.

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