<prompt> Three hosts in life cycle are required in-Taenia soliumEntamoeba histolyticaTrichuris trichiuraDiphyllobothrium latum  <response>: Ans. D. Diphyllobothrium latuma. In D. latum-There are three hosts-one definitive and two intermediateb. Definitive host: man, dog, cat, pigc. First intermediate host: cyclopsd. Second intermediate host: fresh water fishe. Entamoeba histolytica and Trichuris trichiura need only one host man in the life cycle.f. Taenia solium requires two hosts in life cycle-man and pig 