How fish swim and why do fish swim

The body of the fish is streamlined, large in the middle and small at the end. The surface of the body is covered with scales, which protect the body; There is a layer of mucus on the surface of the scales, which reduces the resistance of the water when swimming. There is a lateral line on both sides of the body, which is connected to the nerve, which is mainly used to determine the direction and sense the flow of water.

The body of a fish has pectoral fins, dorsal fins, pelvic fins, and caudal fins, which are the locomotor organs of the fish in the water. There is a swim bladder in the body, the main role is to regulate the specific gravity of the body, the swim bladder in the coordination of the fins, can make the fish stay in different water layers. The dorsal and anal fins mainly play a stabilizing and balancing role when moving.

The tail fin works with the muscles on the side of the body to propel the fish and control the direction. The main function of pectoral and pelvic fins is to maintain the balance of the fish, cooperate with the body of the fish, and adjust the lifting of the fish. However, pectoral fins are more versatile than pelvic fins, and they can be used like oars to move the fish forward slowly.

Fish use their fins to swim in the water in curves. Its body is very standard and streamlined, with mucus all over its body, and the gravitational pull in the water is small, so the fish will swim forward quickly as long as they swing their tails.

The trunk is the main fin auxiliary.

Because fish have a swim bladder, by adjusting the air capacity in the swim bladder, they can float and sink freely on the ground in the water; the tail of the fish, which can control the direction of swimming; The fins of the fish are the driving force for progress; The gills of the fish can absorb oxygen dissolved in the water without suffocation; The shape of the fish's body is more adapted to life in the water and has less resistance to the water. So that the fish can swim.

According to the statistics of the late Canadian scholar Nelson in 1994, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish are constantly being discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than ten years, and there are currently about 32,100 species of named fish species in the world.

The fish has a fish bubble, which can control the ups and downs, a gills, which can absorb oxygen in the water, two pectoral fins and two pelvic fins to control the balance, dorsal fin and ventral caudal fin to control the direction, and a fish tail to do power; Fish swim with their scales and fins by their muscles.

Because its feet and hands have been cut off, it can't walk without hands or feet, it can only swim!

Because when it cries, no one will know.

Because it's called a fish, a fish can swim, and if it can't swim, it's not called a fish.

Because the fish can't walk, they learn to swim.

Fish swim mainly through the tail fin and the swing of the body, which is usually achieved by the contraction and relaxation of the muscles. The gills of the fish can absorb the oxygen from the water into the body, and at the same time, the dioxide-carbon dioxide can be carefully discharged from the body, so that the fish can provide sufficient oxygen to maintain the needs of life activities. Different species of fish have different swimming styles and speeds, some fish can swim in the water for long periods of time without stopping, while others choose to swim fast to escape predation.

In general, it is in the nature of fish to swim in water, and it is an important way of biological movement in nature.

Summary. Fishes are ectothermic aquatic vertebrates that breathe with gills, swim through the swing of the tail and trunk and the coordination of fins, and feed on the upper and lower jaws, and belong to the vertebrate subphylum of the phylum Chordates, and generally people divide vertebrates into five categories: fish, birds, reptiles, mammals, and amphibians. According to the statistics of the late Canadian scholar Nelson in 1994, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish are constantly being discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than ten years, and the number of named fish species in the world is about 32,100 species.

Hello dear, the fish swims with fins. The fish can swim freely in the water thanks to its fins, which are important helpers to help the fish swim, and there are usually five types of fins, namely pectoral fins, pelvic fins, dorsal fins, anal fins and caudal fins. Its loose caudal fin is responsible for providing forward momentum and also controlling direction, while the pectoral fin acts as an oar as it swims slowly.

Fishes are ectothermic aquatic vertebrates that swim with gills breathing, through the swing of the tail and trunk and the coordination of fins, and feed with the envy of the upper and lower jaws, and belong to the vertebrate subphylum of the phylum Chordates. According to the statistics of the late Canadian scholar Nelson in 1994, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish are constantly being discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than ten years, and the number of named fish species in the world is about 32,100 species.

Summary. Hello! Glad to answer for you, here's what you get:

Fish swim with fins and body muscles! The fins are able to create propulsion, while the muscles control the posture and direction of the fish! Different species of fish have different shapes and sizes of fins, adapting to different swimming styles and environments!

Hello! I'm glad to answer for you, and here's what you get: Fish swim with fins and body muscles!

The fins generate the power to push the feast, while the muscles control the posture and direction of the fish! Different types of silver fish have different shapes and sizes of fins, adapting to different swimming styles and environments!

Fellow, I really didn't understand, I can be more specific.

Here are a few of the ways fish are used to swim and their detailed descriptions:1Exhale swimming:

Often, fish will spit out gas while swimming, making their bodies light, and then use the power of muscle contractions to propel themselves forward! 2.Lateral line swimming:

Some fish can use the lateral line system to sense the pressure in the water around them and adjust their swimming position and speed! 3.Caudal fin swimming:

From the base of the tail fin to the tip, the tail fin of the fish is made up of multiple branches! When a fish swims with its tail fin, it twists its body to make the tail fin swing and thus propel itself forward! 4.

Gill Cover Swimming: Some fish can use the gill cover to propel themselves forward! They work by opening and closing the gill covers, thus creating a flow of water with thrust!

In conclusion, different species of fish will use different methods to swim, and the efficiency and adaptation of these methods will also vary according to the ecological environment and physical characteristics of the fish!

Fish swim through body shape and muscle strength. The body of the fish is usually streamlined, and this shape has a low resistance in the water and helps to reduce the resistance of the current. Secondly, fish have very strong muscles and can push themselves forward in the water through the contraction of their muscles.

Additionally, fishes often have very flexible bodies, which allows them to move more finely and adjust their levels by twisting their bodies or swimming their fins.

From a physical point of view, the main principle of fish swimming is Newton's third law, which states that "every action has an equal and opposite reaction". When the muscles of fish contract, they push their bodies backwards. Then, due to the physical properties of the fluid, the tail forms a horizontal propulsion in the water, which is in the opposite direction to the fish's body.

Therefore, every time the fish contract their muscles, a reverse forward propulsion force is created, which makes the fish move forward.

In addition to body shape and muscle strength, the fins of fish also have a great impact on their ability to swim. The dorsal, pelvic, pectoral and caudal fins of fish can all be used to adjust their position and orientation in the water, allowing them to better maintain balance and make more agile turns.

Overall, the swimming ability of fish is maintained through their body form, muscle strength, and fins. These factors work together to allow fish to move and maneuver efficiently in the water. <>