All the organisms listed in the question are parasites. These include Fasciola hepatica (liver fluke), Tape worm, Paragonimus westermani (lung fluke), and Guinea worm. They each have distinct methods of infecting hosts and causing diseases.
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The question about 'Costade' organisms refers to parasites that affect human health. Among the options presented, all are parasitic, but the Guinea worm is specifically known for its challenging human impact. Each option, including liver flukes and tapeworms, represents significant parasitic infections in humans. ;