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Animal Phylums
The 10 phylums of the animal kingdom
| Question | Answer |
|---|---|
| Proifera | ex. sponges Filter Feeders -digests food with collar cells (use flagellum) pore bearing no nerves or mussels Always sessiel |
| Cnidaria | ex hydra, jelly fish, coral Nerve Net-Interconnected 1 opening digestive system tenticles with stinging cells 2 body forms -medusa -polyp radial symmetry |
| Platyhelminthes | ex. Planaria, tape worms, fluke flat worms 1 digestive opening most primitive with cephalization (gathering of nerve cells in the head) -muscular with "right action" (able to flip itself) can be free living (planaria) or parcitic (tape worm) |
| Nematoda (Aschelminthes) | round worms ex nematode, pinworm, hook worm Famous for the Anus, first phylum with 2 opening digestive system nerve ring with brain some are freel iving, most are paracitic |
| Annelida | Segmented worms ex earth worm, leach Tube with a tube -skins and mussel -digestive tract 2 opening digestive system skin used as a respiratory organ so must be moist close circulatory system-5 aortic arches (hearts) -Dorsal and ventral blood vessels |
| annelida cont. | --Capilaries Nerves ventiral nerve cord excretion nephridia (pari/segmented) reproduce hermaphrodites |
| Mollusca | soft bodies 0,1,2 shells called valves made of calcium muscular foot or tentacles mantel -secreates shell (pearls) -can be used as a "lung" "if have no gills" most have an open circulatory system (blood touches organs) |
| Echinodermata | spiny skin ex starfish, sand dollar, sea cucumber, sea urchin pentaradial (5) symmetry Water vascular system -H2O filled canals Tube feet -locomotion -feeding -gas exchange Feeds off bivalves -use tube feet to open |
| Echinodermata | -turns stomach inside out & puts in bivalve -pulls it vack into finish digestion regenerates |
| Arthropoda | ex insects, crustations, aracnics, millipides, centipides exockeletons -chitin -must mot when segmented bodies -head, thorax, abdemen -head and thorax = cephalothorax paired jointed appendages -antenna, antennule-senses, chilapeds- feeding |
| Arthropoda cont. | ,swimmiretts -pushes H2O over gill -reproduction M- direct sperm F-hold fertilized eggs, walking legs open circualtory system (gillis) tubeular heart Hemocyanin- copper blue |
| Chrodata | dorsal nerve chord during development -notochord -gill slits |
Created by:
Rassmann 2
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