domain eukarya kingdom animalia. coelom? body cavity - space between digestive tract wall and body...
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Domain EukaryaDomain Eukarya
Kingdom Animalia
Coelom?
Body cavity - space between digestive tract wall and body wall, surrounded by mesoderm cells, location of organs
Phyla: Mollusca, Annelida, Arthropoda, Echinodermata, Chordata
Pseudocoelom?
Space around digestive cavity, not surrounded by mesoderm cells
Phylum Nematoda
gut
gut gut
SymmetryBalance or arrangement of parts
asymmetry- no symmetry
Porifera
radial- wheel plan
Porifera, Cnidaria, Echinoderm adults
bilateral- 2 sided
Echinoderm larva, Platyhelminthes, Arthropods, Annelids, Chordata
Protostome?
Coelom develops from a solid mass of cells, blastopore becomes mouth
Mollusca, Annelida, Arthropoda
Mouth
Deuterostome?
Coelom forms from outgrowth of digestive tube, blastopore becomes anus
Echinodermata, Chordata
Anus
Domain EukaryaDomain Eukarya
Kingdom Animalia
TraitsEukaryoteMulticellularHeterotrophNo cell wallDiploid except for gametesMost internal digestionMost zygotes with developmental
stages
Animals probably evolved from colonial protists
Phylum PoriferaTraits
Radial or asymmetry 3 layers of cells, no tissues or
organsNo developmental stages or
layersCellular digestionWater dwelling
Examples: sponge
Phylum CnidariaTraits:
Radial symmetry Tissues (muscle, nerve) no organs 2 developmental layers (endo &
ectoderm) No coelom One opening Tentacles with stinging cells Water dwelling
Phylum CnidariaExamples: coral, hydra, sea anemone, jellyfish
Phylum PlatyhelminthesTraits:Bilateral symmetrySimple organs and systems3 developmental layers (endo,
ecto, mesoderm)No coelomOne opening
Examples: planaria, flukes, tapeworms
tapeworm
fluke
Phylum NematodaTraits:
Bilateral Organs and systems (no circulatory) 3 developmental layers Pseudocoelom 2 openings
Examples: nematodes of soil & water, trichina parasites
Phylum Mollusca
Traits:Bilateral, 3 layers, 2 openings,
coelomOrgans and systems (open
circulatory)Coelom (protostome)
Examples: snail, slug, oyster, octopus, clam
Phylum Annelida
Traits:Bilateral, 3 layers, 2 openings,
coelom Systems (closed circ)SegmentsCoelom (protostome)
Examples: earthworms, sandworms, leeches
Phylum Arthropoda
Traits:Bilateral, 3 layers, 2 openingsCoelom (protostome)Exoskeleton of chitinJointed appendages
Examples: spider, insect, lobster, scorpion, tick
Phylum Arthropoda
5 classes:Horseshoe crabsArachnids (spiders)Crustaceans (lobsters, crabs)Millipedes and centipedesInsects (grasshoppers, bees,
butterflies, ants, mosquitoes)
Phylum Echinodermata
Traits:Bilateral larvae, radial adults3 layers, 2 openingsCoelom (deuterostome)Endoskeleton Water vascular system, marine
Examples: starfish, sea urchin, sea cucumber
Phylum ChordataTraits:
Bilateral, 3 layers, 2 openingsCoelom (deuterostome)Dorsal, hollow nerve cordNotochord (cartilage rod in back)Gill structuresPost-anal tail
Invertebrate examples: tunicates, lancelets
tunicate
Lancelet
Classes Vertebrate chordates
Agnatha- Jawless fish- lamprey
Classes Vertebrate chordates
Chondrichthyes- cartilage fish, gill slits, no scales- sharks, rays
Ray
Classes Vertebrate chordates
Osteichthyes- bony fish, scales, operculum- tuna, trout, koi
Classes Vertebrate chordates
Amphibian- no hard shell on eggs, moist skin, reproduce in water- frogs, toads, salamanders
Classes Vertebrate chordates
Reptilia- shelled (amniotic) egg, cold blooded (ectothermic), scales-lizards, snakes, alligators, turtles
Classes Vertebrate chordates
Aves- shelled amniotic egg, warm blooded (endothermic), scales & feathers
birds of all kinds
Classes Vertebrate chordates
Mammalia- hair, warm blooded, amniotic egg that developes inside mother, mammary glands –
bat, dolphin, kangaroo, human