Biology, 15.07.2021 16:50, tessa70

Please help me with this east question asap What are the features of Class Demospongiae?
A. small and dull in color with a skeleton make of calcium
carbonate
B. can be up to 6 ft. in length and used as natural bath sponges
C. "glass sponges" made from silica

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Please help me with this east question asap What are the features of Class Demospongiae?
A. s...