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an animals early free living stage is called |
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prtozoans are classified into three groups based on their being either amedoid, ciliated or |
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a marine biology student added a drop of dilute HCI to a sponge and observed effervesence. the student concluded that the internal skeleton was composed of |
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the inability for a sponge to make rapid, reflex movemnts is due ot its lack of |
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the largest plnkton species is the |
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a good place to find sponges locally is |
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attached to the bottom of a wharf pilling |
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water and wastes exit a sponge's body throus its |
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ciliated and flagella are mainly used by protozoans for |
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organisms that live attached to substrates are called |
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the ameboid movement of protozoans is carried out by their |
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