Q9 / 200 · NEET 2010 (Screening) · Botany

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

  • A
    Octopus
  • B
    Asterias
  • C
    Ascidia
  • Correct answer
    D
    Fasciola

Solution

Fasciola hepatica (sheep liver fluke) belongs to phylum-Platyhelminthes. These worms have incomplete alimentary canal, there is a single opening for both ingestion and egestion. This is also called as blind sac body plan.

Hence, the correct answer is option: 'D'.

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