Trematoda Quiz: Parasitic Worms and Life Cycle

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10 Questions

Which subclass of trematoda has adults that are called flukes, are flat and have leaf-like shape?

Digenea

In the life cycle of digenea, what is the final stage of the young fluke called?

Cercaria

Which family of trematodes is important and includes species such as Fasciola hepatica and Fasciola gigantica?

Fasciolidae

What is the intermediate host for the liver fluke Fasciola hepatica?

Freshwater Lymnaeid snails

Which genus in the family Dicrocoeliidae has two intermediate hosts, including a land snail and ants?

Dicrocoelium

Which structure of the digenea parasite is responsible for penetrating the intestine wall of the definitive host?

Cercaria

Which family of digenea includes important species such as Fasciola hepatica and Fasciola gigantica, both of which have freshwater Lymnaeid snails as intermediate hosts?

Fasciolidae

In the life cycle of Dicrocoelium, which organism serves as the intermediate host before ants (formica)?

Land snail

Which genus in the family Fasciolidae is responsible for causing liver fluke infections in cattle and pigs, leading to encapsulated or calcified flukes in the liver parenchyma?

Fascioloides

What is the final stage of the young fluke called after developing from redia in the life cycle of digenea parasites?

Cercaria

Test your knowledge about the phylum Platyhelminthes, class Trematoda, and their parasitic relationships with fish and amphibians. Explore the characteristics of the subclass Monogenea and Digenea, as well as the varied and complex life cycle of these parasites.

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