It circulates the body distributing the oxygen picked up in the gills and collecting carbon di-oxide to exchange in the gills for more oxygen.
the tomy
lacked paired fish
Fish use gills to extract oxygen from the water passing over the gills.
Its a simple closed circuit system. The blood flows through the fish body passing through the gills where the gills siphon out dissolved oxygen from the water. The oxygenated blood then flows through the fish expending the oxygen and picking up carbon dioxide and expelling it from the gills and picks up more oxygen.
The gills of a healthy fish are bright red; this is because blood is flowing through them.
It uses it's gills to extract oxygen from the water to oxygenate it's blood and also to expel carbon dioxide from the blood.
If you mean drown then no, fish have gills that extract oxygen from the water as it passes Through their gills but they suffocate when the flow of water stops passing through the gills or there is a lack of oxygen in the water or when brought out of the water
If there is a good blood supply to the gills of a fish it will be breathing and acting normally. As all fish are quite different this will have to be compared to an average happily living fish of the same br The red color of gills is from hemoglobin. Also, think about the size of the gills relative to the overall size that different fish can achieve it also stands to reason that sufficient oxygen must be transported to all the tissues via blood...as well as any expiration gases hence the gills have massive amounts of blood.
No, because it does not have scales, cold blood or gills.
the gills
Lungs. (or gills for fish).
The gills are sided by a series of capillaries. Capillaries are small blood vessels. These capillaries are used to transport oxygen from the gills throughout the fish.
Gills are to let the fish 'breathe' underwater, I don't think they help them swim though... Answer Coming Soon...