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Fish use density in order to move in the water since they do not have lungs. When the density of water keeps changing, fish use it to move and thereby using less energy.
Yes, they move up and down the water column to eat and avoid danger.
a long fish.
they move like a games
Yes, they move up and down the water column to eat and avoid danger.
cosmic task of a fish is to move the water
They move their arms slowly.
they usually eat insects, fish, frogs ans small water birds
There are 810 different types of Cartilaginous fish. Sharks have a lateral line system which detect movement in the water. Some sharks move even when they sleep so they could get water constantly through their gills. Some sharks lay eggs while others give live birth. The largest cartilaginous fish is the Whale Shark its about 30 feet long and weight up to 10tons.
fish the fins on fish helps it to move easily in water boats the engine of the boat helps it to move easily sorry don't have a third one
they move raidly by swimming. :) by joe
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