Flatworms

Annotated function Flatworms is a parasitic, unsegmented, symmetrical parasite. There are no body cavities, but there are three germ layers. There are forms that can live freely, but many of them are parasites. Flatworms usually have a brain-head system consisting of head ganglia (brain) attached to longitudinal nerve cords, which are interconnected by side branches. Flat worms lack respiratory or circulatory system that occurs through body wall absorption.

Flatworms are not the most complicated of the four groups of worms. Their sensory organs are concentrated on one end of the body, the head. Three kinds of belod have been confirmed: (1) Turbellaria - free life such as planaria fla insects; (2) parasites such as Trematoda - trematode, and (3) Cestoda - tapeworms. Fireflies and ticks are infamous parasites living in humans and livestock. In ponds, lakes, streams, and the sea, mosquitoes in free life are discovered. They eat materials of dead and living plants and animals. The most popular free-living mosquito, planaria has the ability to regenerate. The digestive system consists of an opening, the intestine leading to the mouth, and the branch of the pharynx. When nutrients are absorbed by the cells, undigested food is discharged from the mouth.

Oceanic parasites: Multilocular parasites are the largest living freely living parasites, sometimes as long as 15 cm. The name of Polycladids comes from their highly branched gastrointestinal tract. These people took pictures with reefs near Guam. (Click on any of the above images to see the enlarged image.) There are few fossil records in Platyhelminths. Fossil eggs were found in Egyptian mummies and Egyptian ground stem dry fertilizer (Alessandrello et al., 1988), some fossils of fossils were reported to have been made by platyhelminths (Alessandrello et al., 1988) . Parasitic mollusc larvae may leave holes or thin spots on the inside of the shell that may be identified with the fossil shell. When molluscs are stimulated by the presence of fluke larvae, they can wrap them with shell-like substances - so parasites become natural pearls

Flatworm, platyhelminth, any Platyhelminthes door, soft, normally a group of very flat invertebrates. Many parasites live freely, but about 80% of the parasites are parasites. In other words, I live on or in other creatures and I am taking nutrients from it. They are bilaterally symmetrical (that is to say on the left and right) and lack a special respiratory system, skeletal system and circulatory system; body cavities (body cavities) are absent. The body is not divided; the spongy connective tissue (mesenchymal system) constitutes the so-called parenchyma and fills the space between the organs. Typically, an elephant is a sex part of a sex part who occurs in one person. Like other advanced multicellular animals, they have three embryonic layers - endoderm, mesoderm and ectoderm - and have a head region containing concentrated sensory organs and nerve tissue (brain).