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ROUNDWORMS

Dive into the realm of roundworms in Kingdom Animalia, Phylum Nematoda, encompassing predatory and parasitic nature. Discover their reproductive system, diseases like trichinosis and elephantiasis, and how Ascarid and hookworms affect humans and animals. Learn about C. elegans research and the importance of its DNA sequencing.

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ROUNDWORMS

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  1. ROUNDWORMS Kingdom Animalia - Phylum Nematoda --Unsegmented worms--Pseudocoelom ("false coelom")-- body cavity contains organs

  2. Digestive tract with 2 openings:mouth & anus Feeding Free-living - predatorsParasites - humans and animals Reproduction: Sexual reproduction, Separate sexes (male & female)

  3. Roundworms & Disease Trichinosis (trichinella worm) - cysts within the muscles are consumed (undercooked food) -- worm grows in intestine-- forms cysts in the muscles of the new host -- symptom: terrible pain in muscles

  4. Filarial Worms - found in Tropical regions of Asia -- usually transmitted by mosquitoes-- causes elephantiasis

  5. Ascarid Worms (common roundworm) - lives in intestine- eggs are passed out in the feces Most roundworms infect dogs, but occasionally they find their way into human hosts

  6. Hookworms - burrow into the skin from soil- mature in the intestines--hooks used to attach and suck blood

  7. Research on C. elegans • first organism to have DNA completely sequenced • It is a very simple, free living roundworm

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