Please help me with this east question asap What are the features of Class Demospongiae? A. small and dull in color with

Question

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

Please only respond if you know the answer

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Xavia 4 years 2021-07-16T19:16:36+00:00 1 Answers 9 views 0

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  1. bonexptip
    0
    2021-07-16T19:18:31+00:00
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    Answer:

    They are sponges with a soft body that covers a hard, often massive skeleton made of calcium carbonate, either aragonite or calcite. They are predominantly conoid in structure. Their “skeletons” are made of spicules consisting of fibers of the protein sponging, the mineral silica, or both.

    Explanation:

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