Oxygen - yes. Air - no. Not much of that around underwater.
Dolphins actually have to surface to get oxygen from the air. Tuna and squid have special lungs called "gills" that allow them to remove oxygen directly from water.
Air gives use Oxygen!
Animals breathe in oxygen in the air.
Squid use oxygen from seawater for respiration. The seawater enters the mantle through the opening near the head, and passes over the gills. Oxygen diffuses from the water into the blood, and is transported to the gill (or branchial) hearts by a network of many blood vessels.
People use air for oxygen, without air we would all be dead.
Organisms use the oxygen they absorb from the air for their cells. The cells need this oxygen in order to carry out their functions.
They use them to breathe with, to get oxygen from the air.
Squid have gills along their sides... thus obtaining oxgen similar to a fish
The way to improve oxygen in the air is by increasing life that give off oxygen as a byproduct such as plant life. Animals use oxygen and give off carbon-dioxide which is used by plants which in turn releases oxygen in the air.
the air. they use their lungs
We exhale more oxygen than we use. Air contains approximately 20% Oxygen - when we breathe in - we absorb about 4% of the oxygen - and exhale the rest.
same way the fish do