According to the text provided, how do fish breathe underwater?
Fish are animals that live in water. They have a backbone, so are considered “vertebrates.” A fish’s body is covered with overlapping scales. These scales help to protect it from predators. They also allow a fish to move through the water more easily.
Fish breathe by using their gills. Gills are feathery parts usually located in a fish’s head. As the water passes over their gills, the fish absorb the oxygen from the water and that oxygen enters their bloodstream.
Some fish live in fresh water, like lakes, rivers, and streams. Others live in the salt water of the oceans and seas. Fish can be very small, measuring less than one inch. Some fish are very large and measure several meters.
Retrieved from: https://simple.wikipedia.org/wiki/Fish
Fish don’t breathe oxygen, they breathe by absorbing the salt in the water.
Water passes over featherlike gills that absorb the oxygen and allow it to enter their bloodstream.
As they swim, water passes over their scales, which absorb the oxygen from the water and allow it to enter the bloodstream.
Fish rise to the surface to breathe and actually hold their breath when swimming underwater.
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