How does the flat nature of plathyhelminthes help it
Answers
Platyhelminthes are commonly known as flatworms or tapeworms, these animals are soft-body invertebrate animals. There are about 20,000 species of these animals. Some of these live in the form of parasites on humans and other animals. This is due to the parasitic nature that they cause some trouble for the host animal. Some species related to this file can be a major cause of some diseases. Schistosomiasis, or bilharzia or bilharziasis, related to Schistosomatidae of the family, is a disease caused by these parasitic flatworms.
The most distinctive feature of these unchangers is their flat body. Since there is no cave in the body, they are flat. The body has not been divided too and they do not have special systems. About 80% of flatworks are parasites in nature, while some free-form flatworms are also present. Free living species are swavengers or predators. Parasitic species feed on the host organisms in which they live.
This file has a diverse range of sizes in animals. There are some microscopes, while some go up to two feet long. They are also hermaphrodites, which means that both sexes exist in the same organism.
Characteristic features of Phylum Platyhelminthes
• His body is dorsoventrally flattened.
• They display bilateral symmetry.
• In addition, they are triploblastic with three bacterial layers.
• There is no cave in their body and they are Viacomomate.
• The body is soft and countless.
• They are mostly parasites with independent life
• They display an organ system grade of organization.
• The digestive system is incomplete or absent. Is the only opening that directs to a well-built gastro-vascular cavity. Anus is absent. There is no real stomach structure. In some species, digestive system is completely absent.
• The respiratory and circulatory system is absent. Respiration usually occurs through the spread of the normal body through the spread.
• In the emitting system is protonfridia with flame
• Ancient nervous system exists.
• These animals are hemaprodite.
• Sexual reproduction is done through gametic fusion.
• Some species also have unrequited reproduction through reincarnation and fragmentation.
• Fertilizer is internal.
• The life cycle of these organisms can be complicated, especially if they are parasites because they may include one or more host animals.