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Classification Presentation

Classification Presentation. Introduction. Basic Information Morphological Characteristics Nutrition Reproduction Example Cool Facts. Platyhelminthes Rotifera Nematoda Nemertea. Platyhelminthes. Basic Information. Platyhelminthes (Scientific name) Flatworms (Common name).

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Classification Presentation

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  1. Classification Presentation

  2. Introduction • Basic Information • Morphological Characteristics • Nutrition • Reproduction • Example • Cool Facts • Platyhelminthes • Rotifera • Nematoda • Nemertea

  3. Platyhelminthes

  4. Basic Information • Platyhelminthes (Scientific name) • Flatworms (Common name) • Most are in marine, freshwater, and moist terrestrial habitats • Few are parasitic

  5. Morphological Characteristics • Bilateral symmetry • Triploblastic • Respire by Diffusion • Invertebrate • Acoelomate • Incomplete Digestive system • Excretory system • Protonephridia

  6. Nutrition • Free-living: -Carnivores -Scavengers • Parasites: -Blood -Tissue fluids -Pieces of cells

  7. Reproduction • Hermaphrodites • Asexual Reproduction

  8. Example • Class: Cestoda • Parasite • Live in digestive track of vertebrate • Taeniasaginata • Beef tapeworm

  9. Cool Facts!

  10. Rotifera

  11. Basic Information • Rotifera(Scientific name) • Wheel Animal (Common name) • Microscopic Animal • Live in moist area

  12. Morphological Characteristics • Multicellular • Mostly soft body • Cuticle • Cement gland • Not Segmented • Complete Digestive System • Cryptobiosis • Pseudocelom

  13. Nutrition • Primarily Omnivorous • Filter food from water • Eat dead or decomposing organic materials

  14. Reproduction • Parthenogenesis • Sexual Dimorphism

  15. Example • Class: Bdelloidea • Well-developed corona • Evolutionary role of sexual reproduction • Diversified into more than 300 species but are fairly similar to other sexually reproducing rotiferaspecies

  16. Cool Facts!

  17. Nematoda

  18. Basic Information • Nematoda (Scientific name) • Roundworms (Common name) • Most are parasitic

  19. Morphological Characteristics • Unique Epidermis • Invertebrate • Muscles are all aligned longitudinally • Little sensory apparatus • Bilateral symmetry • Pseudocoelom • Lack of cilia • Lack of respiratory system • Cryptobiosis

  20. Nutrition • Carnivorous • Many terrestrial species feed on plant roots • Some eat dead organic material

  21. Reproduction

  22. Example • Class: Secernentea • Parasitic • Ascaris lumbricoides • Giant roundworms • Infect human • Most common

  23. Cool Facts!

  24. Nemertea

  25. Basic Information • Nemertea (Scientific name) • Ribbon Worms (Common name) • More complicated and well developed than the seemingly similar flatworms • Most are marine

  26. Morphological Characteristics • Lack of specialized gas exchange structures • System of Blood Vessels • Proboscis • Rhynchocoel • Acoelomate • Complete digestive system • Well-developed nervous system • Highly flexible and contractible

  27. Nutrition • Carnivorous • Hunt

  28. Reproduction • Gonochoristic • Few terrestrial species are Hermaphroditic • No Permanent Gonads • Pilidium Larva • Desor and Iwata larvae • Most species can reproduce asexually by fragmentation, even multiple times

  29. Example • Class: Anopla • Lineus longissimus • Longest • Mucus contains a relatively strong neurotoxin

  30. Cool Facts!

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