porifera cnidaria and ctenophora specimen lab n.
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Porifera , Cnidaria and Ctenophora Specimen Lab. 1. What phylum is this organism in?. 2. What class is the sponge classified in?. 3. Why?. 4. What type of symmetry does this organism exhibit?.

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5. The hard spike-y structures are spicules. What two materials can spicules be made of? Circle the material you think this sponge’s spicules are made of.

6 the pointer is pointing at the top of the sponge where water exits this is called the
6. The pointer is pointing at the top of the sponge where water exits. This is called the ____________.
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13. On this jelly you can see the gelatinous layer between the ectoderm and endoderm. This is known as the ___________.
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16. Jellyfish have two body plans. The ephyra is the transitional body form produced by a ____asexually. The ephrya grows to become an organism with the _______ form.

20 this hydrozoan is a colonial organism list the three organisms in the colony and their jobs
20. This hydrozoanis a colonial organism. List the three organisms in the colony and their “jobs.”