Invertebrates 1 - Sponges, Cnidarians and Platyhelminthes...

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Sponges, Cnidarians and Platyhelminthes BIOL 1407
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Invertebrates Animals without backbones Most animals Picture 21
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Sponges Porifera ≠ clade Two possible phyla: Silicea (most sponges) Calcarea Photo Credit: BIOL 1407 Student Picture 16
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Cell Types Choanocytes Amoebocytes Epidermal cells Porocytes (in some) Picture 18
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Choanoflagellates and Choanocytes Picture 8 Picture 12
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Skeleton Spicules Calcium carbonate Silica Spongin Collagen protein Photo Credit for bath sponges: Alcinoe, 2005, Wikimedia Commons Photo Credit for Venus’ Flower Basket: NOAA, 2002 Picture 4 Picture 5
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Phylum Cnidaria Hydrozoa - ( Hydra , Obelia ) Anthozoa - Corals and Sea Anemones Scyphozoa - Jellies Cubozoa - (sea wasps)
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Hydrozoa Picture 19 Picture 21 Photo Credit for Portuguese Man o’ War: UNK Vieques 2008 Field Trip
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Anthozoa Picture 9 Picture 1 Picture 13 Photo Credit for Hard Coral: BIOL 1407 Student
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Scyphozoa Picture 8 Picture 9
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Invertebrates 1 - Sponges, Cnidarians and Platyhelminthes...

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