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MARINE WORMS

MARINE WORMS. Parasite Project. Power point presentation Requirements: Title slide (parasite and group member names) Disease information (multiple slides) Symptoms, what they do to the body, cures - life cycle -reproduction -organism structures/characteristics -works cited.

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MARINE WORMS

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  1. MARINE WORMS

  2. Parasite Project • Power point presentation • Requirements: • Title slide (parasite and group member names) • Disease information (multiple slides) • Symptoms, what they do to the body, cures - life cycle -reproduction -organism structures/characteristics -works cited

  3. Phylum Nemertea – ribbon worms

  4. Ribbon worm video • http://www.youtube.com/watch?v=y4-AZ4FYJCI

  5. Phylum Nemotoda - roundworms

  6. Nematoda- roundworms • Anisakis • Parasite in dolphins and seals • Larvae live in flesh of fish • Ascaris • Live in intestine of pigs, horses and humans • Can produce 200,000 eggs per day

  7. Ascaris life cycle

  8. Roundworm video • http://www.youtube.com/watch?v=Z9RJHkzQtXc • http://www.youtube.com/watch?v=gZfrkN8fq1Q&feature=fvwp&NR=1

  9. CDC hookworm • http://www.cdc.gov/parasites/hookworm/

  10. Phylum Chaetognatha – arrow worms

  11. Bristle worms

  12. Arrow worm video • http://www.youtube.com/watch?v=mpJ2uyUHR-o

  13. Phylum Pogonophora – deep-sea tube worms

  14. Phylum Sipunculida – peanut worms

  15. Peanut worm video • http://www.youtube.com/watch?v=CVzKlhGWPwE

  16. Phylum Platyhelminthes – flatworms • Includes tapeworms, freshwater planaria, parasitic flukes • Some parasites, many free-living predators and scavengers • Can cause swimmer’s itch in people

  17. Phylum Platyhelminthes – flatworms parasitic fluke planaria tapeworm

  18. Phylum Platyhelminthes – flatworms • Flattened • Lack segmentation • Bilateral symmetry – simplest organisms to have it • Acoelomate – no body cavity

  19. Phylum Platyhelminthes – flatworms • Mouth and anus are same spot

  20. Phylum Platyhelminthes - flatworms • Central nervous system (simplest organisms to posess) – bunch of nerve cells (ganglion) and two nerve cords • Cephalization • Light sensitive eyespots

  21. Phylum Platyhelminthes – flatworms • Beginning of organ development • No true respiratory, excretory system – diffusion through surface • Sexual (and asexual) reproduction - hermaphrodites

  22. Phylum Platyhelminthes – flatworms

  23. 3 classes of Platyhelminthes • Turbellaria- ex. planaria • Trematoda ex. flukes • Cestoda- tapeworms

  24. Fluke life cycle

  25. Fluke slapping In whales

  26. Platyhelminthes video

  27. Human Tapeworm video • http://www.youtube.com/watch?v=FW76UxudEMk • Whipworm: http://www.youtube.com/watch?v=FU3bGh6_e0g

  28. Phylum Annelida – segmented worms • Includes earthworm, leeches, marine polychaetes (bristle worms) • Body divided into ring-like segments • Thousands of species

  29. Phylum Annelida – segmented worms

  30. Phylum Annelida - Polychaetes • Most common types of marine annelids • Have external, paddle-shaped structures (parapodia) with chaetae or bristles • external gills or appendages

  31. Phylum Annelida – segmented worms • Coelom – fluid-filled body space – between digestive tube and body wall

  32. Phylum Annelida – segmented worms • Hydrostatic skeleton – uses fluid in coelom – helps animal move • One-way digestive tube - mouth and anus • Bilateral symmetry

  33. Phylum Annelida – segmented worms • More developed organ systems: • Digestive system • Nervous system • Circulatory system • With hemoglobin to carry oxygen • Closed – blood in veins, arteries and capillaries

  34. Phylum Annelida – segmented worms

  35. Phylum Annelida – segmented worms • Many lifestyles: - burrow - swim - sessile - live in tubes

  36. Phylum Annelida – segmented worms • feeding strategies: Parasites - attach to other organisms and feed through suckers

  37. Phylum Annelida – segmented worms • feeding strategies: Suspension feeders – trap particles floating in water Christmas tree worms feather duster worm

  38. Christmas Tree Worms • Polychaetes

  39. Octonauts Christmas Tree Worms

  40. Phylum Annelida – segmented worms • feeding strategies: Deposit feeders – eat particles that have fallen to sea floor

  41. Phylum Annelida – segmented worms • feeding strategies: Predators – use “teeth” to grab prey

  42. Phylum Annelida – segmented worms • Nereis sp. – sandworm, clamworm • used for bait

  43. Annelida video

  44. Types of Marine Worms • Phylum *Platyhelminthes – flatworms • Phylum Nemertea – ribbon worms • Phylum Nematoda – roundworms • Phylum Chaetognatha – arrow worms • Phylum Pogonophora – deep-sea tube worms • Phylum Sipunculida – peanut worms • Phylum *Annelida - segmented worms

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