BIOL 3454 1nd Edition Lecture 13 I class Turbellaria mostly free living missing info II class Trematoda class Digenea III Digenean reproduction shelled embryo or larvae miracidium free swimming IV clonorchis human liver fluke V Schistosoma eggs discharge in human waste make it into water hatch as ciliated miracidia miracidia get into snail make sporocysts schistosoma blood fluke missing life cycle dont have to digest just swim in water that schistosoma is in sexually dimorphic VI swimmers itch N America natural lakes normal hosts are birds bore into humans by mistake die releasing irritating chemicals symptoms resemble mosquito bites VII paragonimus lung fluke eggs coughed out of lungs swallowed eliminated through feces zygotes develop in water miracidium finds snail These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute get into lungs and very dangerous intermediate host crabs class monogenea parasites usually on gills of fish few on gills one on hippo eyes VIII Class Cestoda tapeworms front end is a scolex with hooks for attachment repeating reproductive segments called proglottids chain of these is strobila missing info missing life cycle of tape worm cattle eat grass loss weight urban legend lard b gone IX Phylogeny playhelminthes turbellria paraphyletic in current form planuloid ancestor hypothesis one branch becomes test wed 10 15
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