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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All are true regarding trematodes except:
assistant
The correct answer is  Trematodes are unsegmented, leaf-like flat worms or helminthes with no body cavity. All of them are hermaphrodite except Schistosoma. They have two intermediate hosts, first is snail and second is fresh-water fish/ crab or water plants except schistosomes (one intermediate host) All schistosomes are acquired by skin penetration by cercariae unlike the other trematodes which are acquired by ingestion of metacercariae in poorly cooked fish or unwashed water plants.