Which of the following organ systems has specialized organs that produce and support immune cells that kill disease-causing microorganisms?

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    lymphatic system
    endocrine system
    nervous system
    integumentary system
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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lymphatic system
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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