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eemb3 midterm#2

animal phylogeny

QuestionAnswer
subphylum Myriapoda Class CHILOPODA centipedes, arthropoda
subphylum Myriapoda Class DIPLOPODA millipedes, arthropoda
subphylum Hexapoda arthropods, insects w/ 2 types of metamorphosis
subphylum Crustacea ARTHROPODA, 2 antennae, carapace tagmata, nauplius larva
Class Trilobita arthropoda, extinct
Class Merostomata arthropoda, horseshoe crabs
Class Asteroidea sea stars, echinoderm
Class Crinoidea feather stars / sea lillies. feathery arms 4 filter feeding. echinoderms
Class Echinoidea sea urchins, sand dollars. no arms. echinoderms
Class Holothuroidea seas cucumbers, regurgitation of intestines. echinoderm
Class Ophiorodiea brittle stars,detrivores. echinodermss
subphylum Urochordata chordate: free swimming larva, sessile adult. ?chordate revolution?
subphylum Cephalochordata chordate: non-vertebrate***. filter feeding ault
Agnatha: Class Petromyzontida chordate: lamprey, 7 pairs of gill slits, ectoparasite
Agnatha: Class Myxini chordate: hagfish, 5-15 pairs of gill slits, mucous slime producing
Gnathostomata: Sarcopterygii; subclass Actinista chordate: bony skeleton fish, swim bladder w/ oil
Gnathostomata: Sarcopterygii; subclass Dipnoi chordate: bony skeleton fish, rudimentary lungs to breathe air, limb-like appendages
Gnathostomata: Class Actinipterygii chordate: bony skeleton, single gill covered by operculum, hydrostatic swim bladder
Class Adenophorea nematode: chemosensory head region b/c has amphids. 5+ esophogeal glands
Class Secernentea nematode: chemosensory tail region b/c of aphasmids,
Class Polyplachophora mollusca: chiton, 8 plated dorsal shell
Class Monoplacophora mollusca: thought to be extinct. marine low rounded shell w/ radula
Class Bivalvia mollusca: lost head and radula
Class Turbellaria platyhelminthes: free living flatworms as marine scavengers, cilia/slime track
Class Trematoda platyhelminthes: parasitic flukes, endoparasites of vertebrates. syncytial tegument
Class Cestoda platyhelminthes: tapeworm, acoelomate, body made of Proglottids, w/ scolex!
Class Hirudinea annelids: leeches w/ no parapodia & no setae. Clitellum present!
Class Monogenea platyhelminthes: fish flukes, ectoparasites of fish w/ opisthaptors! syncytial tegument & NO CILIA
Class Homoscleromorpha porifera: simple, no spicules or silaceous materials
Class Calcarea CaCO3 spicules, 3-4 rays, calcareous sponges
Class Hexactinellida porifera: glass sponges, silaceous spicules, 6 rays
Class Cubozoa cnidaria: dominant medusa, has a Velarium for swimming, box jellies
Class Anthozoa cnidaria: dominant polyp, many colonial cnidaria: corals, symbiotic algae ex: sea anemone
Class Scyphozoa cnidaria: dominant medusa, jellyfish
Class Hydrozoa cnidaria: ONLY polyp stage,portugese man o' war
subclass Octocorallia anthozoans: soft coral secretes CaCO3 exoskeleton, 8 septa in gastrovascular cavity
subclass Hexacorallia anthozoans: sea anemones, carnivorous w/ stinging tentacles. siphonoglyph for water current
subclass Ceriantipatheria anthozoa: gastrovascular cavity w/ unpaired septa. thorny corals, tube anemones
Class Polychaeta annelids: NO CLITELLUM, mostly marine w/ developed head. parapodia segments w/ setae for swimming
Class Oligochaeta annelida: no parapodia, few setae, CLITELLUM PRESENT, earthworms!
Created by: 574522177
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