1. Platyhelminthes By :Jeremy Ivcic

2. Characteristics ● Flat bodies ● Bilateral symmetry (have the same body parts) ● Gastrovascular cavity (can only take in food) ● Small compressed bodies ● Range from a few millimeters to several meters ● Well developed nervous systems

3. Adaptations ● Have thick body covers ● Also have suckers and hooks

4. Facts ● Known as Flatworms ● Simplest of all worm species ● Belong to a group of animals known as acoelomates, which means “without a hollow.” ● There are three types of Flatworm – Turbellaria, Trematoda, and Cestoda

5. Dugesia tigrina ● Kingdom: Animalia ● Phylum: Platyhelminthes ● Class: Turbellaria ● Order: Tricladida ● Family: Dugesiidae ● Genus: Dugesia ● Species: D. trgrina ● Common Name: Freshwater Planarian

6. Dugesia tigrina ● Live under rocks and plants in clear freshwater ponds, streams, and springs ● They eat various invertebrates like mosquito larvae ● Range from 1 to 20 millimeters

7. Bdelloura candida ● Kingdom: Animalia ● Phylum: Platyhelminthes ● Class: Turbellaria ● Order: Tricladida ● Family: Bdellouridae ● Genus: Bdelloura ● Species: Bdelloura candida ● Common Name: Horseshoe crab flatworm

8. Bdelloura candida ● Can be as big as 15-25 mm ● Feeds off left over food particles from horseshoe crab ● Can be found in Eastern North America along the beach

9. Taenia solium ● Kingdom: Animalia ● Phylum: Platyhelminthes ● Class: Cestoda (tapeworms) ● Order: Cyclophyllidea ● Family: Taeniidae ● Genus: Taenia ● Species: Taenia solium ● Common Name: pork tapeworm

10. Taenia solium ● Can be found wherever raw pork is eaten, and can live in human intestines during adult stages ● Is normally 2-3 m ● Eat human feces

11. Video ● http://animal.discovery.com/videos/monsters-inside- me-pork-tapeworm.html http://animal.discovery.com/videos/monsters-inside- me-pork-tapeworm.html ● http://animal.discovery.com/videos/monsters-inside- me-pork-tapeworm-in-brain.html

12. References Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. The Animal Diversity Web (online). Accessed March 25, 2011 at http://animaldiversity.org. http://www.ncbi.nlm.nih.govNational Center for Biotechnology Informationhttp://www.ncbi.nlm.nih.govNational Center for Biotechnology Information, U.S. National Library of Medicine 8600 Rockville Pike, Bethesda MD, 20894 USAU.S. National Library of Medicine

13. References "pork tapeworm." Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica, 2011. Web. 03 Apr. 2011..http://www.britannica.com/EBchecked/topic/470637/pork- tapeworm Holt, Rinehart, and Winston. "Flatworms, Roundworms, and Rotifers." Modern Biology. Austin, New York, Atlanta, Orlando, San Francisco, Boston, Dallas, Toronto, London: Harcourt Classroom Education, 2002. 709-14. Print.

14. References Hine, Robert. "Platyhelminthes." Science Online. Facts On File, Inc. Web. 4 Apr. 2011..