What are the peculiar features that you find in parasitic Platyhelminthes?
Members of Platyhelminthes possess the following characteristics. These are mostly endoparasites of animals including human. Hook and suckers are present for attachment to host body. They absorb nutrient from the host directly through their body surface. These are free-living, parasitic forms. Tissue, organ, grade of body organization is seen. The digestive tract is incomplete or absent. Respiration is anaerobic. Reproductive system of parasitic forms is highly developed with enormous power of reproduction. Well defined excretory organs such as flame cells are present.