Nematodes are known as a type of worm, which are characterized by having a cylinder shape, have a very small size and usually inhabit aquatic environments and in the soil. According to experts, it is estimated that there are around 25 thousand known species, these can be autonomous or, failing that, they can be parasites that inhabit humans, plants and animals, in these living beings it can cause cells to be altered, causing damage to the proper functioning of your systems, for this reasonis that many consider that nematodes can be very dangerous if they inhabit any of these organisms. These are also known as roundworms and cylindrical worms. Nematodes can be classified into various types, these are the following, fungivores, bacteriographers, omnivores, phytophagous and predators.
Regarding their internal structure, nematodes have a fairly developed nervous system, as well as sophisticated sensory organs that allow them to detect plants much more easily and also fulfill reproductive functions. On the other hand in terms of their size, they can be very small, the smallest ones can be 1 mm long, which prevents them from being detected with the naked eye, however they can reach 50 cm.
However, when it comes to size, there is nothing defined, since the immensity of species that exist makes this aspect very variable, there are even some species that can reach 8 meters in length, being the females the ones that grow to that point, since in general they are the ones that manage to reach a larger size.
In order to enter an organism, nematodes must fit their body as a kind of needle and then proceed to extract the necessary nutrients for their development, this is because this type of worms have the ability to absorb the juice of the cells from both the plants like any living species.
Within this classification it is possible to find both parasite specimens, which require an organism to host them to survive and there are also free-living organisms, such is the case of monoxenes.
