Question

Example for incomplete gut

• A. platyhelminthes
• B. porifera
• C. aschelminthes
• D. chordata

Answer 1

The correct option is A platyhelminthes

A normal gut is one which has two openings, a mouth, and an anus. In an incomplete gut, the mouth is present but organisms have no anus. As soon as food enters the gut, the mouth closes and the cells of the gastrodermis begin to work. Digestive enzymes are secreted in the gastrovascular cavity. This is seen most commonly in platyhelminths group of invertebrates.

So, the correct option is 'Platyhelminthes'.