When you go to the toilet to pee out a worm about 5 centimeters long, it is alive, flat and has a tr

Updated on Toilets 2024-04-03
1 answers
  1. Anonymous users2024-01-23

    Tapeworms are giant intestinal parasites that can reach up to 72 feet (meters) in length as adults. Class 1 of the phylum Platyzoa. All camp parasitic life. Adults parasitize vertebrates, and larvae mainly parasitize invertebrates or use vertebrates as intermediate hosts.

    Tapeworms belong to the class Cestoda of the phylum Flatworms. The adult body of this class is dorsoventrally flattened, symmetrical, mostly segmented, long as a band, without mouth and digestive tract, lacking body cavity, except for a few, all are hermaphroditic. The majority of adult worms parasitize in the digestive tract of vertebrates, and need 1 2 intermediate hosts in the life history, and the period of development in the middle host is called metacestode, and the morphological structure and name of the larvae of various tapeworms are different.

    There are more than 30 species of tapeworms parasitic in the human body, which belong to the subclass Cyclophyllidea and Pseudophyllidea. There is a clear difference in morphology and life history between these two orders.

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