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Unformatted text preview: • Sexual Reproduction o Cross fertilization (reciprocal sperm exchange) Class Termatoda • Chinease Liver Fluke o A common parasite of humans in Asia o 30 million people are infected by eating raw or undercooked fish • Schistosoma Species o Blood flukes infect over 200 million people throughout the world Class Cestoidea (tapeworms) • As adults all reside in the digestive tract of vertebrates • No mouth, no digestive tract • Adult worms consist of repeated units called proglottids and the anterior holdfast structure is a scolex The beef tapeworm, Taeniarhynchus saginatus • People get these by cooking rare or uncooked meat Nemotodes • (pseudocoelomate) (false body cavity) Eucoelomates • True body cavity...
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- Spring '08
- Cestoda, digestive tract, Flatworm, true body cavity, false body cavity, longitudional nerve cords