gills
Yes. Fish and many other aquatic organisms have gills. The gill is a respiratory organ that extracts dissolved oxygen from water and excretes carbon dioxide.
The California Sea Hare, or Aplysia californica has gills inside its body. This is how it extracts oxygen from the water.
water, other essences/ extracts.
Fish use gills, which extracts oxygen from the water. Amphibians and whales breath oxygen, whales can hold their breath for hours at a time, explaining how sperm whales can hunt at great depths for periods of time.
most fish get their air from the oxygen-saturated water, but certain breeds (like bettas) do well in water with a low amount of dissolved oxygen, because they have a special resperatory organ called the labyrinth that allows them to breathe at the waters surface- in fact, they inherently must do so... unless they want to go to fishie heaven :(
The A/C extracts water from the air.
Because they are underwater. They have to get oxygen that is dissolved in the water instead of that available in the air. Fish have an air bladder which controls their buoyancy. Some fish can use it as a lung. When they swim in the water they use their gills. When they are on land, they use their lung.
A daphnia can be found in water, as a water flea. These little critters are filter feeders, living of algie and other plants that can be found in an uncleaned fish tank.
When the lungs fill up with water, such as in drowning or near-drowning scenarios, the oxygen in the air cannot reach the bloodstream to be distributed to the body's tissues. Instead, water creates a physical barrier that prevents oxygen exchange in the alveoli, leading to a lack of oxygen supply and ultimately suffocation.
Same way other fish get oxygen. Push water over their gills and removed dissolved oxygen from the water
Hydrogen and oxygen do react with water. When hydrogen reacts with oxygen in the presence of water, it forms water again. This reaction can be seen in the process of electrolysis, where water is split into its components, hydrogen and oxygen, using electric current.
That bitters extracts be added to water.