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Fascinating World of Nematodes: Discovering the Roundworms

Learn about over 80,000 species of cylindrical pseudocoeloemates known as nematodes. These creatures have efficient hydroskeletons and musculature, mostly inhabiting aquatic areas and often demonstrating parasitic behaviors. Many nematodes reproduce sexually, with females capable of producing around 100,000 eggs daily. Explore parasitic nematodes like roundworms, hookworms, heartworms, and Guinea worms causing diseases such as trichinosis and elephantiasis. Understand the life cycle of filarial worms in Phylum Nemertina, which resemble flatworms and include proboscis worms.

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Fascinating World of Nematodes: Discovering the Roundworms

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  1. Over 80000 species • Cylindrical pseudocoeloemates • Have effective hydroskeleton and musculature • Inhabit aquatic areas. Most are parasitic. • Most reproduce sexually. Females can produce ~100,000 eggs a day. • Tricininella spiralis causes trichinosis in humans from under cooked pork • Parasite burrows into muscle tissue forming cysts • Hookworms and pinworms can parasitize digestive systems • Others cause heartworm and elephantiasis Phylum Nematoda:The Round Worms

  2. Parasitic Nematodes: Roundworm Hookworm

  3. Heartworms

  4. Guinea Worms:

  5. Elephantiasis (Filarial worm)

  6. Life Cycle of Filarial Worm

  7. Trichinosis

  8. Phylum Nemertina • Similar to flat worms • Inclide proboscus worms • Acoelomate, but have functioning digestive tract • Also have a funtioning blood vascular system

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