Question

Which one of the following mollusc act as secondary host for Fasciola?

• A. Pila and Unio
  
• B. Lymnaea and Planorbis
  
• C. Helix and Pila
  
• D. LImax and Helix
  

Answer 1

The correct option is B Lymnaea and Planorbis

Fasciola is a parastic trematode. The organism is commonly known as the liver fluke. The main host is the humans in which the disease is caused. The secondary or the intermediate host for the Fasciola is the snail. Lymnaea and Planorbis are the genus of snails. These organisms acts as the secondary hosts.

Thus, the correct answer is option B.