Question

Cysticercus is the larva of

• A. Liver fluke (Fasciola)
• B. Tapeworm (Taenia)
• C. Roundworm (Ascaris)
• D. Acorn worm (Balanoglossus)

Answer 1

The correct option is B Tapeworm (Taenia)

• Cysticercus or bladderworm is the larva of Taenia having the bladder-like sac which is filled with a watery fluid.
• The watery fluid is the blood plasma of the host.
• Miracidium is the free-swimming oval elongated larvae of liver fluke.
• The larval stage of Ascaris is called rhabditiform or rhabditoid larva that resembles the soil nematode Rhabditis.
• Trochophore larva is found in acorn worms (Balanoglossus) and molluscs.

Thus, the correct answer is option B.