Its scientific name is Platyhelminthes, also known as flatworms, it is a group of invertebrate animals that includes approximately 20,000 species. Among the characteristics used to classify these animals, the acellomates, protostomes and tribastics stand out. Acellomates since they do not have a coelom or general body cavity and their body is solid, protostomes since the animal's mouth derives from the embryonic blastopore and tribal since they have three embryonic leaves during their development: the endoderm, the mesoderm and the ectoderm.
They mostly develop as parasites, that is, parasitizing on other animals. They are flattened dorsoventrally and have bilateral symmetry, their body is soft and they do not present segmentation. Most of them are microscopic in size and those that are larger are extremely thin.
The space between the skin and the few available organs is filled with mesodermal tissue known as mesenchyme, a connective tissue filled with collagen cells and fibers. Flatworms present morphological and physiological differences depending on the environment in which they inhabit, since their bodies are fully adapted to different habitats. Two types of life are distinguished: those of free life and parasites.
the best known types include tapeworms and pain. Flatworms are estimated to comprise about twenty thousand species.
A not having what is called locomotor appendages, worms planes can move through the vibrations produced by the epithelium ciliated.
On our planet it can be classified in a generalized way, having on the one hand inert Objects as all matter that simply has the function of serving as a substrate, support or sustenance for the settlement of life, while on the other hand we find Living Beings as those who have an organization of matter in a certain structure called Organism and who have the ability to exchange matter and energy with this environment in which they operate.
Flatworms are distinguished into four classes: peaty (this type lives free, is carnivorous and burrows to find its food), mononuclei (this variant is found in fish and amphibians), cestodes and trematodes (these two are especially characterized because generally live as parasites of some mammals, including man). The last three are also characterized by the absence of a head.
