ringel worms info

Ringel worms, Latin name is “annelids / Annelida”, belong to the tribe of the limbs animals. The ring-worms in the little bristles orders (Oligochaeta), large bristles (Polychaeta) and leeches (Hirudinea) subdivided. There are approximately 9000 species. Known representatives include earthworm and leeches. The largest species can have up to 3 meters long and is a ringel worm species in Australia (Eunice gigantea), the smallest type is a ringed worm in groundwater, he is half a millimeter in size. The worms are ringed the most developed worms. Naming body description is the elongated, mostly round the body, the rings (segments) is divided. On the rings are ungegliederte, feet of bristled butts and water-living species also gills. The bristles, which consist of chitin, sit on several pairs, the earthworm is exactly eight per ring, on the belly side and the two sides body. They are rearward facing and allow the worm to it to move and not to slip back. When the bristles hold, the worm in the soil also by vertical tubes creep. The body sections are largely the same built and the outer striped is mostly an internal encapsulation. Another feature is also from the skin and a ring and longitudinal muscle layer of the skin muscle existing hose. The abdominal cavity is filled with fluid. The cave is a straight, unbroken through the gut.

The closed vascular system consists of a back and a stomach tube, for each body section ring receptacles are connected. The back of the blood vessel is pushing forward the abdominal vascular back again. There are also in each section two simple excretory organs available. The ventral side on the nervous system is consists of two long strands with paired by crossing associated nerve nodes in each section. This construction is called Strickland Head nervous. The nervous system consists of a further front. The bristles are usually large marine animals, live afloat and rapacious or seated firmly. Among the many bristled ones include the Sandpier and Palolo. The leeches live ectoparasites. This means that these worms as parasites on the body surface of other animals live. On a motion creeping earthworm can be seen that in the first getting the rings on the rear end move in together. The contracted piece is thicker than the rest of the body. Then pushes the compressed zone as a wave up to the front end of the worm. Finally, the head end as far down as before the rear end was tightened.

The body wall consists of the main muscular tube with two muscle layers. If the longitudinal muscles, shorten the worm pulls itself together. Shorten the ring muscles, then stretches the worm. These muscles practice a combination of contrasting movements, called the muscles also antagonists (opponents). Leeches have on the front and the rear end of each suction cup, which they can be an exciting move. In addition, they swim with wave-like movements. Sucker on the front are three horn jaw with teeth. The earthworm has no respiratory organs, but takes oxygen through his thin, slimy skin. He needs moist environment, since the skin only in wet can breathe: earthworms are humidified air animals. But if the soil after heavy rains soaked with water is, they must come out, because they can not breathe in water and would die. The blood vessel system of the earthworm branches to close to the body surface. From the fine blood carbon dioxide penetrates through the skin to the outside, while oxygen on the opposite way in the blood reaches. This gas exchange is described as a skin respiration.

The less bristled procreation and the leech also called together belt worms, the name of an organization, who serves procreation. In the front-thirds of the body have a thickening on. It is the so-called rich glant Clitellum, when mutual copulation more swells and strong absondert secretions and the animals often for hours together. Mating takes place in the warm nights on the surface of the earth or water instead. The egg-laying happens shortly afterwards. And although the eggs in a large pea slime bags stored by the Clitellum isolated and will soon leathery corroborated. The young worms slip belt after two to three weeks. Earthworms have a belt, during the reproductive process from the front end of the rear body slides. On the hose first male sperm and female ova then delivered. The belt moves from the body and it grows a new worm. The “original blueprint” in each segment contains a pair of sex organs, this “design principle” but within the group of ringed worms often modified.

Ringel Worms, Asia Flora; Accuweather online information, Gift Ideas guide.