A worm is the generic name that is attributed to different types of worms that live in humid lands, belong to the class of annelids, can be white or red in color and have a soft and elongated body.
Meanwhile, Earthworms They are a family that integrates the class of annelids and it is estimated that to date there are about six thousand species.
As it turns out from the typical characteristics of annelids, earthworms have their body composed of many rings similar to each other and originate from the European continent.
Another feature common to the species is its aquatic origin, cutaneous respiration and the need for moisture to survive.
They also have a significant length, normally being about 30 cm long and in some tropical regions they can reach 4 meters.
It should be noted that the earthworm is a organism that plays a substantial role in the ecosystem in which it resides as being: they are the first biomass of the soil, they help the formation of the soil, they affect the carbon and nitrogen cycles, they favor the activity of microbes, they contribute substantial improvements to the chemical and physical properties of the soils and they become the basic diet of both birds and mammals.
Their basic activity consists of digging galleries in the ground, while they do this excavation they consume soil particles and also digest organic remains. In extremely humid moments, they know how to drag leaves into the earth in order to nourish themselves and thereby aerate and make the soil in question more fertile, since they make phosphorus and potassium rise when they eliminate their waste.
They are hermaphrodites, that is, they have female and male reproductive organs, and when the climate is more humid they appear on the surface to procreate.
It should be noted that the earthworm is also used as bait for fishing, as food for animals and for humans, to produce earthworm humus and to treat and value waste.
