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Platyhelminthes

Platyhelminthes. Emily Anderson Kelsey Crawford Emily Spillett Angela Spinney. Classification. Kingdom: Animalia Phylum: Platyhelminthes Class: - Cestoda - Monogenea - Trematoda - Turbellaria. Monogenea. Parasitic Ectoparasites and Endoparasites. Cestoda. Tapeworms

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Platyhelminthes

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  1. Platyhelminthes Emily Anderson Kelsey Crawford Emily Spillett Angela Spinney

  2. Classification Kingdom: Animalia Phylum: Platyhelminthes Class: -Cestoda -Monogenea -Trematoda -Turbellaria

  3. Monogenea Parasitic Ectoparasites and Endoparasites

  4. Cestoda Tapeworms Lack digestive system and locomotor organs Host intestines

  5. Trematoda Commonly called flukes 18,000to 24,000 species Parasites of mullosks and vertebrates Range from 1mm-7cm in size Have two distinct suckers; on mouth and underside.

  6. Turbellaria Commonly called Planarian Live in saltwater and freshwater ponds and rivers Receive oxygen and release carbon dioxide through diffusion Eat small living or dead animals through their muscular mouths.

  7. Characteristics Two basic forms of movement Simple Nervous System Flat bodied Unsegmented bodied Bilateral symmetry Take in food and get rid of waste through mouth Invertebrates

  8. Development/Life Cycle Free-living Forms Parasitic Forms Example: Monogenea

  9. Reproduction Sexual Reproduction Asexual Reproduction Transverse Fission Budding

  10. Evolutionary History • Evolved from Hydra • 550 million years ago • Bilateral Symmetry

  11. Fun Facts ! The longest tape worm ever found was over 90 feet long If a flatworm is starved it is capable of shrinking to hatching size and when fed it has the ability to grow back to its original size 

  12. Fun Facts Cont. • Some species switch from being a herbivore to a carnivore as they mature.  • Scientists can train flatworms to do simple tasks, such as finding water in a maze. When these flatworms are then cut in half, the new halves learn faster than the original.

  13. Sources - http://www.biologycorner.co/ Fbio1notes_flatworms.html http://faculty.fmcc.suny.edu/mcdarby/Animals/PlantsBook/Animals/03-Flatworms.html • http://www.britannica.com/EBchecked/topic/209735/flatworm/64445/Development • http://www.earthlife.net/inverts/platyhelminthes.html • http://science.kennesaw.edu/~jdirnber/InvertZo/LecPlatyhel/Platyhel.html • http://www.seawater.no/fauna.platyhelminthes/&h=_AQE7P9Tm • http://www.ecospark.ca/changingcurrents/flatworm

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