Bony fish have many gill filaments because they use them to breathe. They are also used to transfer things like water and ions.
Those would be the gills. which are composed of many filaments. Gill filaments have rows of thin, vertical lamellae with many capillaries covered by a single layer of cells. Gills are really thin.
If they are a species of fish, they use their gills to get the oxygen out of the surrounding water. If they are aquatic mammals such as whales or dolphins, they breathe with lungs just as we do and have to get to the surface at regular intervals to breathe out and in.
Unlike humans, fish do not have lungs (with the exception of one species, the "lung fish"). Fish are in fact not "ventilating", but breathing. Inside the gills of a fish are rows of red tissue, called filaments. Inside the filaments are many blood capillaries rich with red blood cells which transport oxygen throughout the body. As the fish moves its gills back and forth, it moves water over the filaments and oxygen in the water is absorbed into the blood stream through the filaments. When fish are in water with too little oxygen and cannot get what they need from moving their gills, they will go to the top of the water and gulp air from the surface. If you own a fish and you see it doing this, it would be a good idea to install a water filtration system. Fish will die if the water they are in has too little oxygen. They also have to vibrate their gills from time to time to release the build-up of sea salt, which can become carcinogenic if allowed to cake hard.
Most fish do in fact have scales, even some with scales that are nearly microscopic in size; many catfish however do not have scales, they have armour plating, but not scales.
A perch, like most bony fish, has a two-chambered heart. This simple heart consists of an atrium and a ventricle that pump blood through the fish's circulatory system.
fish are are vertebrates
Gills have numerous folds that give them a very large surface area.The rows of gill filaments have many protrusions called gill lamellae. The folds are kept supported and moist by the water that is continually pumped through the mouth and over the gills.
Those would be the gills. which are composed of many filaments. Gill filaments have rows of thin, vertical lamellae with many capillaries covered by a single layer of cells. Gills are really thin.
Most fish exchange gases using gills on either side of the pharynx (throat). Gills are tissues which consist of cloth and fabric structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.[1][2]Each filament contains a capillary network that provides a large surface area for exchanging oxygen andcarbon dioxide. Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. In some fish, capillary blood flows in the opposite direction to the water, causing countercurrent exchange. The gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side. This opening is hidden beneath a protective bony cover called an operculum.
Gill flaps, also known as opercula, are bony structures found in some fish that cover and protect the gills. They play a crucial role in respiration by helping to regulate water flow over the gills, allowing fish to breathe more efficiently. In some species, gill flaps can also aid in defense against predators. Overall, they are essential for the respiratory system of many aquatic animals.
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There are 3 syllables. Bon-y fish.
Tilapia have four pairs of gills, totaling eight gill arches in their gill chamber. Each gill arch supports numerous gill filaments, which are responsible for gas exchange. This structure allows tilapia to efficiently extract oxygen from water as they breathe.
The Osteichthyes is evolved from lungs of early bony fish. The fish have many types of evolved.
Using many structures called gill lamellaes
Fish are animals that have gills. There are many types of fish, and they can be found in the ocean and in lakes.
Bony fish belong to the Class Sarcopterygii (if lobe-finned) and the Class Actinopterygii (if ray-finned). Coelacanths and lungfish are lobefinned and about all other bony fish are ray-finned. The two classes used to be combined as Class Osteichthyes. There are many superorders and orders in the bony fish classes.