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About ringel worms

Saturday, January 24th, 2009

ringel worms

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

gift ideas - asia flower - zierfisch

Technorati Tags: bristles orders, Clitellum, Earthworms, Hirudinea, large bristles, limbs animals, Oligochaeta, Polychaeta, Ringel worms, skin respiration, worm

Tags: bristles orders, Clitellum, Earthworms, Hirudinea, large bristles, limbs animals, Oligochaeta, Polychaeta, Ringel worms, skin respiration, worm
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About bamboo

Saturday, January 24th, 2009

bamboo

As a man you have always encounters - as a gardener but further, namely those with plants. I arrived a few years ago in a garden, what a beautiful bamboo grew. Wide, unloading, certainly five to six meters high, captivated me this plant extremely extraordinary. It seems that you sometimes for years on plants passes without it really perceive. From this encounter has developed a relationship which has been going on for years. I could not hold back and had a piece of this impressive crop to ask your own garden. The owner looked at me, but warned and said: “That you have to be superior but good if you did it once, so you’ll get him little more away. And also do you do me a lot of work! “Such a warning may be of course a plant in an amorous gardener does not deter finally makes love so blind. The second point I understood until years later.

So now the growing Phyllostachys sp. As he is internationally understandable, since soon eight years in the garden. From a tough piece, for which a plastic bag was good place, becomes now a several meters in diameter plant. The whole year he is green and always in motion, with its thousands of small leaves. With the whole shape he responds to the atmospheric conditions: very quiet rustling, he barely moved in the air, he duck under crackling rain, will disheveled and fro by the wind, which blows around the corner of the house. It may storm, as it pleases, never I found a broken branch. The winter covered him with snow. He offers no resistance to the falling flakes. This bow to him with her weight, until he lies on the ground. But hardly is the snow resumed, the bamboo culms back into their old upright there. A biggest enemy however is: the frost, when the temperatures are below minus 20 degrees Celsius. The aboveground part from freezes, the rhizome is protected in the ground, and with last year is stored force pushes it back out again. The died straws are cut. Until next winter is very cold enough then “baby” bamboos are available to other plants in the garden. In the early summer, when the first warm days the soil has warmed, it is particularly interesting what the bamboo “do”. Between the old culms and spur driving the species even in the close vicinity, making itself felt all sorts of tips, which remarkably rapidly, with small leaf blades as cheerfully waving in the amount aspire. The blade itself, from the rhizome fed from the ground. As thick as the sprout from the ground, will the straw afterwards. The number of nodes of mature bamboo culms then is fixed. Are extraordinarily sensitive young straws at this time: the aborted shoot uppers with the lawn mower or cut off, dies the whole part. Bamboo can be used for botanical breathtakingly fast growing conditions, namely, depending on the type of favorable locations 20 - 40 inches a day. Quite the stalks grow straight up and punctured lanceolate same area of the previously grown shoots. Each year, the new culms grow a little higher, until after about 10 years, their continuing thickness has been reached. If the growth in length completed, the stem begins to branch, leaf and to be in line with the community of straws.

This is of longer duration, 8-10 years old can be a bamboo branch, every year he is driving more side shoots with new leaves. Again, this may be several months old. The change will take place continuously: the plant “cleans” itself. That is why always the ground is with lots of dry leaves and very siliceous covered by cats, birds and children. Well, so each plant has its own species of bamboo will not return. He is really something special for us and may in fact look on its native relatives he belongs to the family of grasses. Precisely this, the truly gigantic growing giant grass can look for the beauty of the known grasses develop, which also includes the grains. The grass flower is peculiar manner as compared to other plants very inconspicuous. One might think that for this family was not important, in this way to express their care. Is even more pronounced when the bamboo: it blooms only in very large distances - some even in thirty years, in different rhythms of 60, 80 or even 120 years. This much to the chagrin of the scholars, which so clearly a plant just after flowering can determine. So there is not yet the desired clarity today. In the flowering plant achieves such a performance that they subsequently dies. Horticulture art can not prevent it, where it happens remains to be hoped that from the very short time germinable seeds develop new plants. Usually we say that “love is through the stomach. It went so well with my in the meantime efficient grown bamboo. With the tension was the summer, the children kept busy looking after the first sprouts, and then her father in the sweat of his view with spades, shovels, pickaxes, hatchet, saw and we can see lopper small pieces of bamboo gets out of the ground. The surprise was great when it was shown that these bamboo also a fairly useful and robust indoor plant provenance. They are replaced in our room the curtains. Other bamboo species found themselves with time. For example, a dwarf bamboo, which is one of the few plants heard what I had in my room. Every day, he greeted me as a front for the underlying morning sky and suggests to his thoughts of some kind.

Bamboo is primarily 40 degrees north and 40 degrees south of the equator to a height of 3000 m at home, but normaly used only in Asia. In the culture of the peoples living there, however, he plays an extraordinarily important role: he is from the life inconceivable. It will be used as building material for houses, for scaffolding, as containers for beverages and food, as raw material for the manufacture of furniture and objects a direction for the field equipment and gardening, as a weapon, as food for animals and humans, as a medicine. Modern materials and techniques can not replace the bamboo. Bamboo products, the strength of steel, but is flexible, easy and still solid, but is formed and tough. It burns bad, but with heat bent and shaped, can be used in fiber direction capillary divided, which then again, many products can be manufactured. The jun gene shoots are an excellent food, the leaves are of cattle (and Panda Bear) estimated. Of the approximately 100 species encountered in Japan are mainly two grown in culture. “Madake” construction and factory equipment, “Moso” for the bamboo shoots. The cultures are carefully maintained and set precise knowledge of the plants provided. The straws are beaten if they are three to five years old - have previously are too soft, too hard afterwards. Bamboo accompanies the people through the whole life.

Bamboo

tropical fish - koi

Technorati Tags: bamboo, dry leaves, family of grass, rhizome

Tags: bamboo, dry leaves, family of grass, rhizome
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