Remora , they save energy by hitching rides on boats or sharks using a suction they have on there head.they usually slow the shark down but does not harm them.
no, and only one kind of fish can
No. They are a kind of fish. But they haven't changed much since the time of the dinosaurs which is what I think you are referencing. Another one is the bat relating to pterodactyl.
One difference is that fish are bony. Sharks have a skeleton made of cartilage (like in your nose or kneecap). Sharks have five to seven gill slits, while fish only have one. Fish have swim bladders for bouyancy, sharks do not.
I have a lot of mollies, three angelfish, one cambodian shark, three bala sharks, one pleco, one clown loach, and a few guppies.
sharks are fish but not mammals because they not burn young one and they have no fur of ear
The Wrasse fish clean the mouth and body of the bass fish which provide the wrasse fish food.
Great a question on one of my specialties Sharks Ok the answer is blub crabs
Yes, one of the predators of the bat star fish is a shark.
You may wonder why but really its just how they were made sharks are still fish but they dont lay eggs cuz a lot of cold blooded animals have live birth and sharks are one of these kinds.some sharks do have babies in eggs
Sharks don't eat guppies. Sharks live in the Ocean, Guppies live in fresh water.
whales.
Sharks, like all vertebrates, have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.