Question

Choose the correct answers from the alternatives given.
The correct sequence of development in a typical fluke life cycle is:

• A. egg, miracidium, cercaria, sporocyst
• B. egg, miracidium, sporocyst, cercaria
• C. egg, sporocyst, cercaria, miracidium
• D. egg, cercaria, miracidium, sporocyst

Answer 1

The correct option is B egg, miracidium, sporocyst, cercaria

Fasciola parasites develop into adult flukes in the bile ducts of infected mammals, which pass immature Fasciola eggs in their feces. The next part of the life cycle occurs in freshwater. all trematodes follow the typical sequence of eggs, miracidia, sporocysts, rediae, cercariae, and adults. In some species, the redial stage is omitted, and sporocysts produce cercariae. In some species, the cercaria develops into an adult within the same host.

So, the correct option is, 'egg, miracidium, sporocyst, cercaria'.