Which of the following statements about tapeworms of the genus Diphyllobothrium

Question

Which of the following statements about tapeworms of the genus Diphyllobothrium is correct? Worms of this genus have dispensed with a vertebrate definitive host and the life cycle takes places in tubificid worms. The adult worms can grow to up to 10 metres in length and their scolex is therefore armed with hooks to enable the worms-to keep a firm hoid. The eggs are operculate and smaller than those of Fasciola hepatica. The procercoid stage of the life cycle actively searches and invades the fish intermediate host. Human infections are usually associated with the consumption of poorty cooked pork.

Explanation / Answer

option A

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