What are the nematodes?

Nematodes, also known as the piece to Kusppí Rohorka, are one of the 37 living animal phyla and one of the most numerous and various. More than 80,000 species have been named by science and, according to the numbers, non -atodes are one of the largest animals. Nematodes are found in large numbers in all earthly, sea and freshwater environments, where all other animals, including insects, exceed. It is estimated that between 10 18 (one Quintillion) and 10 21 (one sextillion) Nematodes around the world.

Nematodes adapted to live in all possible environments, consume bacteria, fungi, protozoans and the content of other animals or plants. Of the 80,000 scientifically named nematodes, more than 18,000 are parasitic. Scientists believe that the total number of non -atodes can exceed 500,000. Different non -parasites are adapted to different hosts and differs accordingly. Nematodes are called "Roungorms", especially when it is found in a person where they can beseveral centimeters long and cause diseases. The largest grenhers found were found 8.5 m (28 ft) in length, with 32 ovaries found in the intestines of whale sperm whales.

It is assumed that non -atodes make up 90% of all life on the seabed and are found in the deepest power inputs of the ocean, where the pressure is 100 times larger than on the surface. Three types of non-tatodes are located in McMurdo dry valleys in Antarctica, one of the harshest environments on the ground where temperatures reach −60 ° C (-76 ° F) in winter and wind speed exceed 320 km/h (200 mph), almost all Moist. Nematodes can survive in small drops of moisture in the rocks and consume bacteria.

Nematodes can be plague for farmers and cause billions of dollars every year. On the side plus, one non -game, 1 mm long caenorhabditis elegans is the organism in biology and extensive study of its structure, life cycle and gEnetics was a blessing in the field. Each cell in C. Elegans (959 in adult hermaphrodite; 1031 in an adult man) was mapped, known for their entire developmental fate. Using genetic manipulation techniques, scientists were able to extend the life of C. Elegans ten times, about 19 days up to 190 days. Some of these techniques can find future medicine applications.