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What Domain, Kingdom and Phylum does this belong to? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Does it have specialized tissues? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Can it bite you? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates What is this? What is missing from this? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates What Phylum does this belong to? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Does this have a mouth? Does it have a separate anus? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates How many different living organisms are shown? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Does this have true tissue (germ layers)? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Which phylum does this belong to? Does it have a foot? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Which phylum does this belong to? Does it have a foot? Mollusc - 3 body parts Visceral mass Foot Mantle (may make shell) porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Which phylum does this belong to? Does it have a foot? Gastropods - snails, conchs, nudibranchs Cephalopods - octopus, nautilus (tentacles) Bivalves - clams, oysters (two shells) porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Will this outgrow its shell? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Will this outgrow its home? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Arthropods - jointed appendages - segmented - grow by molting / metamorphosis – CRUNCHY exoskeleton Insects - head, thorax, abdomen - 3 pairs of legs (wings) Arachnids Crustaceans - forked appendages - head and thorax fused - lobsters, crabs, crayfish - barnacles - pillbug (land) porifera cnidarians flatworms Origin of multicellularity - no antennae, mandible - 4 pairs of legs - spiders, scorpions, ticks - horseshoe crab Millipedes, centipedes (many legs) mollusks annelids nematodes arthropods echinoderms chordates Who is he most closely related to? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates This also grows by molting…what phylum does it belong to? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Is it round, flat, or segmented? Does it have a coelom? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Is it round, flat, or segmented? Does it have a coelom? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Does it (a) have segments, (b) have jointed appendages, (c) go ‘crunch’ when you step on it? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Is it round, flat, or segmented? Does it have a coelom? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Does it have an anus? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates What is going on here? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Is the embryo radial or bilaterally symmetrical? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates How does this phylum’s embryo develop differently from other examples we’ve already looked at? porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms chordates Which is the sea urchin’s closest relative? Sea squirt Sea anemone porifera cnidarians Sea urchin flatworms Origin of multicellularity mollusks Sea squirt (larva) Sea cucumber annelids nematodes arthropods echinoderms chordates Which is the starfishes closest relative? Sea squirt porifera cnidarians flatworms Origin of multicellularity mollusks annelids nematodes arthropods echinoderms Sea squirt (larva) chordates
