BIS 2C Lecture Notes - Lecture 28: Taenia Solium, Panarthropoda, Clitellum
18 Dec 2016
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Document Summary
Live in whale falls" the decaying remains of whales. Bacteria are able to metabolize bone and lipids. Clitellum = thick band of tissue in the middle of the body that secretes a. Lack paired setae, have anterior and posterior suckers for attaching to. Produce a combination of anesthetics, anticoagulants, and vasodialators. Some medical uses such as used to reduce inflammation and swelling. Cross-fertilizing hermaphrodites, held together during mating with mucus. Whale fall worms aka zombie worms = chemoautotrophs related to beard worms with similar features (no gut) Clitellata (earthworms and leeches) = freshwater and terrestrial annelids that lack parapodia and tentacles cocoon for young. Oligochaetes earthworms" = includes terrestrial and aquatic species secreted by clitellum. Hirudinoidea leeches" = mostly blood-feeding ectoparasites, but some are active predators prey during feeding (grown in tanks under sterile conditions) Platyhelminthes flatworms" = triploblastic, acoelomate (secondary), little to no cephalization.
