this organisation has been in place is the best 44455555to in a world that has been in the past for a long time pass to the voters in the past and the only one who was the
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it helps to maintain the shape of the cell
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The middle one pls brainliest if right
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Answer: There are three classes. These classes include Calcerea, Desmospongia, and Hexactinellida. They are divided into these classes based mostly on the composition of their spicules and skeletal fibers. (spicules are rod-shaped cellular projections that make up the skeleton of sponges) hope this helps!
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Answer: THAT IS SO LONGGGGGGG WE CANT DO IT BUT GOOD LUCK!!!!!!!!!!!1
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