what are gills where can they be seen?
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Gills are the organ present in fishes to breathe in water they are located back side of eyes .
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A lamella, or gill, is a papery hymenophore rib under the cap of some mushroom species, most often but not always agarics. The gills are used by the mushrooms as a means of spore dispersal, and are important for species identification.
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Crabs breathe underwater by drawing water (which contains oxygen) over their gills using an appendage called a scaphognathite, which is located on the crab's underside, near the base of its claws.
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The tubeworms' feather-like red plumes act as gills, absorbing oxygen from seawater and hydrogen sulfide from vent fluids. This feat is accomplished by a special type of hemoglobin in their blood that can transport oxygen and sulfide at the same time (human hemoglobin transports only oxygen).
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Gilled mushrooms have basidia located on the gills on the underside of the cap. The spores are dropped from the gills when mature. In boletes, the basidia are located in tubes within the flesh of the cap of the mushroom. The spores are released through pores in the surface of the underside of the cap.
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A: Many bony fish, like the fancy goldfish found in ornamental ponds, have an organ called a swim bladder. ... When a fish is unable to control its depth, or starts swimming sideways, upside side down, or head or tail down, it may have "swim bladder disease."
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Part of the respiratory system of lampreys and hagfish, which have a row of gill pouches on each side of the head. A gill pouch consists of a muscular wall with many respiratory lamellae lodged on its inner side. In lampreys the gill pouches each have a separate opening to the exterior.
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Fish have adapted to their environment through the evolution of gills, swim bladders and fins. Gills allow fish to absorb oxygen from the water, swim bladders allow fish to maintain an appropriate level of buoyancy and fins allow the fish to move through the water.
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Shrimp possess lamellar, plate-like gills and a set of claws on their front two pairs of legs. Prawns, in comparison, have branching gills, and claws on three sets of their legs, with the front pair being noticeably larger.
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Most sharks and rays have five pairs of gill slits, but a few species have 6 or 7 pairs. Shark gill slits lie in a row behind the head. The anterior edge of a gill slit is motile, moving outward to allow water to exit, but closing to prevent reverse flow.
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Fish use specialised surfaces called gills to carry out gas exchange. Gills are highly folded, giving them a large surface area and maximising the efficiency of gas exchange. ... This is important because there isn't much oxygen in the water, and fish need to absorb enough oxygen to survive.
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Three hearts, to be exact. There is a systemic (main) heart. Two lesser hearts pump blood to the gills where waste is discarded and oxygen is received.
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Class Osteichthyes includes all bony fishes. Like all fishes, Osteichthyes are cold-blooded vertebrates that breathe through gills and use fins for swimming. Bony fishes share several distinguishing features: a skeleton of bone, scales, paired fins, one pair of gill openings, jaws, and paired nostrils.
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With the exception of some primitive species, most fish have common characteristics that include gills, scales, fins and bony skeletons. Some characteristics that differentiate fish include the shape of their heads, where their mouths are located, fin type and location, and average adult size.
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Crabs breathe underwater by drawing water (which contains oxygen) over their gills using an appendage called a scaphognathite, which is located on the crab's underside, near the base of its claws. The water passes over the gills, which extract the oxygen.
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Description/Taste Underneath the cap, there are small brown gills, but most of these are hidden as the cap has not fully opened when harvested at the Cremini stage. The short white stem is also edible, dense, thick, and smooth with a slightly rubbery texture.
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Gills are efficient organs for gas exchange in water-dwelling organisms because they posses a great deal of surface area. ... The large surface area of the gas-exchange membrane allows for high rates of diffusion.