Phylum and classes
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| they have the medusa stage dominantly and no polyp examples true jellies | show 🗑
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| have dominant polyp stage and no medusa, can be found in either colonial or solitary polyps and need algae to obtain energy? Example sea anemones and corals | show 🗑
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| show | Class Hydrozoa
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| show | class demospongia
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| only have silica spicules | show 🗑
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| show | Class Calcarea
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| have cilia-ted epidermis that aids in locomotion and are free living ex: dugesia and flatworms | show 🗑
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| show | Class Trematoda
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| show | Phylum Platyhelimnthes
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| Classes- demospongia, clacarea, and hexactinellida | show 🗑
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| show | Phylum Cnidarians
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| show | Class cestoda
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| Classes- Polyplacophora, gastropoda, bivalva, and cephalopoda | show 🗑
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| show | Class polyplacophora
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| show | class gastropoda
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| these need to have two shells that are able to close with abductor muscles, suspension feeders and a crystalline style, some examples are clams, scallops mussels | show 🗑
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| they have heads that are used for high speed predation, a nervous system and no shell examples: octopus and squids | show 🗑
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| show | Phylum Annelid
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| we find these in tubes with paired appendages on each segment and are mainly bottom dwellers Ex: Christmas tree worms | show 🗑
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| Are hermaphodites but need cross fertilization, feed on organic material and has a clitellum | show 🗑
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| show | Class Hirundinea
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| sub phylums- trilobitomorpha, cheliceraformes, myriapoda, hexapoda, and crustacea classes- merostomata, arachnida, chilopoda, and diploda | show 🗑
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| show | sub phyla trilobitomorpha
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| these species have two body parts called cephalothorax and abdomen with 6 pairs of appendages on the cephalothoroax and have chelicera to eat ex: Horseshoe crabs, spiders, and scorpions | show 🗑
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| show | class merostomata
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| spiders and scorpions. they have modified chelicera to fangs to paralyze prey | show 🗑
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| they need to have a head, thorax and an abdomen, with the first head appendage holding just an antenna and the second having mandibles | show 🗑
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| show | Class chiolpoda
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| these have two pairs of legs per segments and are herbivores ex: millepedes | show 🗑
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| some have direct flight and wings attached to body while others dont. all have one pair of antennae, three pairs of appendages attached to thorax, and two pairs of wings if present along with spiracles examples: Insects | show 🗑
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| show | sub phlya crustacea
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| show | Phylum rotifera
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| show | Phylum mollusca
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| these have pseudocoelomates, alamentary canal without a circulatory system, nonsegmented body, and a tough cuticule for protection | show 🗑
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| paired jointed appendages, complex mouths, body in two or three parts, open circulatory system, exoskeleton of chition, and complex sensory system | show 🗑
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| show | Phylum annelida
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| They are dorso ventrally flattened, with a gastrovascular cavity with branches, and water removal and gas exchange via diffusion | show 🗑
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| show | Sponges
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