The parts labelled I, II and III of the farm animal parasite above form the

The parts labelled I, II and III of the farm animal parasite above form the

Answer Details

The part labelled I is the "scolex", the part labelled II is the "rostellum", and the part labelled III is the "sucker". Together, these parts form the "head" or anterior end of the parasite, known as the "scolex". The scolex is the part of the parasite that attaches to the host's intestinal wall, while the rostellum and sucker are specialized structures that help the parasite attach and feed on the host's blood or nutrients. The proglottide, on the other hand, is a segment of the tapeworm's body that contains reproductive organs and develops behind the scolex.