While the cnidaria is radiately built is a mask two-sided symmetrical, as they say.
The mask has a right and a left side and a front end and a rear end.
The front end is the head and the back end sits an anal opening.
The worms have no legs. The fölyytar himself by pinch or stretch his body.
It is often said that there are three kinds of worms, they are: • Ring Worm
The earthworm belongs ring worms, because its body is divided into sections, which look like rings.
An earthworm, do not like us humans any particular respiratory tract. Without it, breathe through their skin. The dew worm's skin must be constantly moist to allow it to breathe. If an earthworm would be too dry, the choke.
In each mask are both male and female sex organs.
An earthworm still have to mate with another earthworm for fertilization to take place.
Animals who are bisexual are called hermaphrodites. The word comes from the Greek gods Hermes (male) and Aphrodite (woman).
The earthworm live in moist and fertile soil, to the ever shall be moist. In the damp earth worm digs a network of passages from the ground surface down to a few decimeters depth, with the exception of winter days when they stay at depths of up to one meter. The earthworm lives of the nutrients found in the leaves and other plant parts, but they do not eat the leaves as they are, but they are relaxing down the leaves, or other plant parts into their small passageways. Down there decays soon the leaves and becomes humus that quickly mixes with the soil. The worms eat their way then through the cavernous mixed earth and can in this way take up nutrients in the earth. In this way, mixing the soil about. Thanks to their assets becomes soil porous so that air can come down to the plant roots. Therefore, the worms a very great importance as a soil conditioner. In fertile land, there may be more than one ton per hectare mask. Where the soil is fertile humus and are thus earthworm ...
The mask feces can be seen as small mounds on the surface.
Why is it called earthworm ?? Well to the dewy nights attracted the ground surface, and hence the name earthworm.
The earthworm is an important food for a lot of animals, including various birds, moles and badgers, but also a lot of insects.
The Swedish earthworms becomes highest will be no more than 3 inches long.
The world's longest earthworms live in Australia, they can be two meters long.
Different seafood Ring Worms, polychaete worms!
The segmented worms that live in the ocean often have more and more strongly developed bristles than the earthworm has. They therefore called for polychaetes. Some polychaetes are fast-swimming predators. Others live in tubes, they manufacture of clay and sand grains with mucus from the skin. The segmented worms that live in the ocean breathe, like fish with gills. The gills are small hudtofsar, located in rows on both sides of the mask.
Sand worm belongs to polychaete worms and liver buried at the bottom of the sludge at shallow sea beaches, where it seeks its food among the organic material present in the sludge.
Sand worm can grow up to 2 dm long.
Fishermen usually pick sand worms and use them as bait.
Rovborstmasken are omnivores who like to attack djurmed its powerful jaws. Rovborstmaskar digs tunnels in mjka bottoms, but also hunt among seaweed and rocks.
Sabre Lama Shine live in tubes, it reinforces with clay. A beautiful crown of tentacles surrounding the mouth. The crown filter plankton from the passing water currents.
Leeches are segmented worms that have suction cups on both ends of the body. Most leeches are aquatic animals. In Sweden, the most common leech hästigeln. Hästigeln is a predator living on the other - less - water animals. Many different species of leeches suck blood from different vertebrates. In Sweden there is a species that can suck the blood of humans, it is the leech, which most certainly have heard of. Leech can grow up to 10 - 15 cm and it occurs most often in small lakes and ponds, mostly in southern Sweden. Leech was used as drugs and sold in pharmacies until the early 1940s, it was thought that leeches cleansed us from disease when they sucked the blood. In nature often confused leech with the increasingly common hästigeln. In Sweden, there are no bloodsucking leeches country, but they occur in the tropical rain forests.
Roundworms live both in water and on land.
Some of these are predators and other drinking juice from the plant cells.
Round worms lacking rings or segments.
Many species of roundworms live as parasites in animals, humans and plants and causing various diseases.
A common species that live in other parasites are trichinae. It can be infected with Trichinella by eating infected pork, which has not been sufficiently fried or boiled. The risk of being infected by this worm is small, at least in Sweden, since pork may not be sold in stores, unless it is inspected and trikinfritt.
The millimeter-sized worms are wrapped in lime canisters in the flesh. The capsules are then dissolved by stomach acid and trichinae are free and can then get into the intestine, where they multiply. The larvae that become after mating takes through the intestinal wall and then follow with the blood to the body's muscles, where they attach themselves and become encysted. It is only when the larva comes out of your body that you notice that you are ill. It appears most often as high fever and works.
Another worm that lives as a parasite is running worm, which usually occurs in children. It is one centimeter long mask, living in the intestine. The children become infected when they get the worm eggs in the mouth in any way. The infected suffer from itching in the rectum.
Then there is a worm known as roundworms and it lives in the intestine where the sponge on our food. The eggs come out with the faeces. They infect animals and humans who drink contaminated water or eat poorly rinsed vegetables. The infected fatigue and headaches. In the worst case, the mask can clog the intestine, but then there are specific medications to help.
Flatworms have a flat body shape, but otherwise can be very different from each other.
Among flat worms are the most common inälvsparasiterna, binnikemaskarna.
Binnikemaskarna has a very flat physique and the mask is divided into segments, like earthworms and other annelids.
Binnikemaskarna live in the intestinal tract of various vertebrates. Binnikemasken myself have no intestinal tract and therefore take up nutrients from animal already decomposed food, directly through the skin. The worms' head has suction cups and hooks, the worm attaches itself to the intestinal wall.
Binnikemasken is rarely fatal but causes usually only weight loss, they can be treated with mask numbing medicine in combination with fecal means.
Most common in humans is the wide binnikemasken which has an interesting development:
The broad tapeworm development:
1. A segment with fertilized eggs come out of the water with faeces
2. The larvae are eaten up by a copepod
3. The larva develops into a larva stage of the copepod
4. copepod eaten by a fish
5. As evolve into so-called cysticercosis in the fish flesh
6. If a person eats the fish badly cooked, can dynet developing into a new tapeworm in the human gut.
The wide binnikemasken can grow up to 10 meters long!
Another flat mask is vortex mask is a small predators. Vortex It lives in lakes, oceans and even in moist soil.
• All worms no legs and they have a soft muskelrik skin and moves through to stretch and tighten your body
• The worms are divided into segmented worms, roundworms and flatworms
• The earthworm that has a major impact on soil nutrient status among annelids
• Sand worm is a ring worm that lives in coastal bays
• Trikin and pinworms are roundworms
• To flatworms hear many internal parasites such as binnikemasken.based on 29 ratings WORMS,