When it comes to fishkeeping, Urea is near enough to Ammonia to be treated the same way. They both are deadly poisons to the fish and have to be made safe naturaly by the use of Bacteria in a filter.
All fish produce Ammonia.
Sharks produce Ureic acid not urea.
Most fish have bones. Sharks and rays do not have bones but they do have bone-like structures that are made from cartilage.
Ammonia can be built up in them separately or the two together. Some species of fish produce more waste and therefore more ammonia than others, for example the goldfish. Turtles are also very wast producing and turtle tanks are often high in ammonia. All fish produce ammonia. So yes.
Actually many sharks don't eat humans, and those that do, eat fish as well.
The same way a human does. by digesting food. :)
Chondrichthyes or cartilaginous fish(have cartililage instead of bone
sharks.
Sharks have no swim bladder for buoyancy. Instead, an oily liver aids in bouyancy.
Whale sharks are vertebrates, but they have cartilage instead of bone. it depends and yes they are because they are a type of fish and fishes are vertebrates
because sharks are a type of fish they can't live out of water. they have gills which retreive oxygen out of the water instead of the air
no tiger sharks are fish but r sharks