Before synthetic sponges were developed, living sponges were harvested for people to use in bathing or cleaning. These sponges are not the whole living sponge, only a remnant of the animal. What part of the sponge animal is used to make a bathing sponge?

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    the nervous system
    the muscular layer
    the skeleton
    the skin
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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the skeleton
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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