short note on movement in water animals
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Answer:
Some animals stay on the surface of the water and use their limbs to propel them. Other animals move underwater. ... They have special structures called fins which help them to move through the water. The body of a fish is long and thin and pointed at both ends.
Answer:
Fish live in water all of the time. In fact they cannot breathe air and they die very quickly if they are out of water. They have special structures called fins which help them to move through the water.
The body of a fish is long and thin and pointed at both ends. This is called a streamlined shape. A streamlined shape moves faster through water than other shapes. This is because it can cut through the water more efficiently than other shapes
The tail (caudal) fin helps the fish to move forward quickly. the back (dorsal) fin keeps the fish in a straight line as it moves forward. The tail of the fish is mostly made of muscles. These muscles contract to move the tail from side to side. The pectoral and pelvic fins are in pairs. These are not used for fast swimming and are held close to the body. They are used when the fish is turning or is moving slowly. they help the fish to keep its balance.
Explanation:
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