-Other Fish group and dvojnodishalkite living in inland waters in tropical predeli.Dokolku drained

-Cvrsta Connection with internal oskov sistem.Toj gives a tight grip on teloto.Toj is composed of spine associated with vertebrae that protect the spinal cord and skull that protects the brain and sense organs.
-They Are aquatic vertebrates that are the most primitive. Over their life with them as a support body is the chord and appears inception of 'rskavichen spine. They live in sweet and salty waters. Their representative is zmijulkata.
-fish Typical aquatic vertebrates that inhabit the sweet and salty vodi.Teloto is covered with skin that is slimy. It develop skin that works raspostraneti in the body in the form of gjeramidi (flakes). They have paired and unpaired fins. Oskoviot skeleton is composed of the spine, skull and skeleton of the fins with seatbelts. ships nostalgia Muscles of the trunk has a segmented structure. Digestive system begins with spoken hole sip, esophagus, stomach, and intestine which zavrzhuva the anal opening. ships nostalgia In the abdominal cavity have fish meur- hydrostatic body that helps breathing. ships nostalgia The core is composed of a chamber and a gate, wherein the mixing occurs in the blood. Excretory system consists of paired kidney through which purifies the blood and urine is discharged to the environment. The nervous system is composed of spinal and cranial mozok.Setilnite organs of sight, smell and taste are well developed, they have side linijaso that they feel the vibrations of the water. ships nostalgia
-'Rskavichni Fish are a small group of sharks and rays. Tropical -ajkula whale is the largest fish, which reaches a length of 20 meters, and feeds planktoni.Sinata shark is very shomala, from 6 to 7 meters and is very dangerous to live chovekot.Raite seabed, sunk in the sand.
-Other Fish group and dvojnodishalkite living in inland waters in tropical predeli.Dokolku drained water basin they can breathe atmospheric air through fish bladder, which is coated with a capillary network.
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