A giant fish
They are used to propel the fish through the water, and in some cases they are used to keep water moving through the gills!
No, if they are cold water it will probably kill the fish but hot water, maybe
It is used to regulate the temperature of the water
Fins are fan-like on some fish, they are used to move the fish in the water.
The fish being comprised mainly of water would not cause the water to rise since they are made of the same thing. Actually, the water would be displaced around the fish, forcing the water upwards. In other words, in the space where the fish used to be, there is now water.
Surface area, is used to paint a house or wrap a present and volume is used when you need to know how much water to put in your fish tank or water bowl
A location where evil plans are made or imagined. Usually used satirically with humor.
No, they are freshwater fish. They can tolerate up to 2 grams of salt per litre of water (2 teaspoons/gallon) but this should only be used for medicinal purposes. They should not be exposed to this much salt long term.
used to search for foodin murky water. also used so the fish is aware of its surrondings
by putting the hook in the water and waiting for a fish
I would not advise it.