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Which class of sponges is characterized by spicules made of calcium carbonate?
Which class of sponges is characterized by spicules made of calcium carbonate?
What is the main function of the choanocytes in sponges?
What is the main function of the choanocytes in sponges?
Which type of sponge is commonly known as the 'red boring sponge'?
Which type of sponge is commonly known as the 'red boring sponge'?
What is the main function of the archaeocytes in sponges?
What is the main function of the archaeocytes in sponges?
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Which class of sponges is characterized by a skeleton made of four and/or six-pointed siliceous spicules?
Which class of sponges is characterized by a skeleton made of four and/or six-pointed siliceous spicules?
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What is the main problem caused by the 'red boring sponge' (Pione vastifica) on oyster and mussel farms?
What is the main problem caused by the 'red boring sponge' (Pione vastifica) on oyster and mussel farms?
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What is the main reason why sponges have few predators?
What is the main reason why sponges have few predators?
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Which class of sponges has a skeleton made of fibers of the protein spongin, the mineral silica, or both?
Which class of sponges has a skeleton made of fibers of the protein spongin, the mineral silica, or both?
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What is the maximum size that the 'red boring sponge' (Pione vastifica) can grow to?
What is the maximum size that the 'red boring sponge' (Pione vastifica) can grow to?
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Which class of sponges is often referred to as 'glass sponges'?
Which class of sponges is often referred to as 'glass sponges'?
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