Types And Features Of Worms
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Worms are a name given to a distinct group of animals that have long, soft bodies moreover no legs or backbone. a good number of of them can be found complete naked eyes while some may simply be found under a microscope. There are thousands of species of worms. Out of which 2,700 are earthworms. Helminthes are a medical name for parasitic worms plus their study is referred to as Helminthology.
Habitats:
Worms ordinarily dwell in soil, but few species may be seen in freshwater, marine seawater and on the seashores. many worms succeed as parasites of plants, animals additionally humans, while most of them are non-parasitic. some worms like the earthworms enrich furthermore aerate the soil thence help in conditioning it.
Groups of worms:
There are three main groups:
* Platyhelminthes: These include flatworms. They have flat, ribbon shaped bodies with a pair of eyes in the front. a good number of of them are parasites.
* Nematoda: These include threadworm, roundworms besides hookworms. The threadworms are found in damp earth, moss, additionally decomposing matter or freshwater. a good number of can be microscopic while some could be more than 3 feet long. some can be parasitic like few species of roundworms.
* Annelida: They are segmented worms such as the earthworms. Their bodies are divided into many segments or rings.
some insects in their immature larva stage can also be popular worms, such as silkworms, bloodworms, glowworms or inchworms.
However, ringworms are not a type of worm, they are skin fungi.
Characteristics:
* Worms are invertebrates. They have various shapes what’s more sizes. They are either a cylindrical, flat or leaf-shaped body what’s more their size can vary from less than 1 mm to more than 30 meters. many of them are microscopic.
* a good number of worms are hermaphroditic, which means they have both male in addition female sex organs what’s more they reproduce sexually, while a good number of reproduce asexually wherein a new body is developed from the body cells.
* Most of them do not have developed body muscles thus they cannot move about on their own. They take the aid of other animals or forces in the surrounding. many species have bodies with major muscles besides can move on their own without any external forces.
Worms fits an integral part of our ecosystem as numerous species have the aptitude to break down organic matters such as dead plants moreover animals and transform them into soil nutrients. hence they are very essential to nature in ecological terms.
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