Examples: Taenia (Tapeworm), Fasciola (Liver fluke).
Which of the following statements about Phylum Platyhelminthes are correct? S1: All platyhelminths are parasitic forms, obtaining nutrients by absorbing them directly through their body surface. S2: They possess an incomplete digestive system where a single opening serves as both mouth and anus. S3: Taenia (Tapeworm) and Fasciola (Liver fluke) are parasitic forms equipped with hooks and suckers for attachment to the host. S4: Specialised flame cells aid in osmoregulation and excretion, while sexes are separate in all forms. S5: Planaria exhibits organ level of organisation and is well-known for its high capacity for regeneration. S6: Development in platyhelminthes is generally direct, with young ones resembling the adult.
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