If the fish die, will the water be sad?

Yes. The water hurts without fish.

If there is no water, the fish will not leave, and if there are no fish, the water will not be sad.

First, the fish is still small, just like other animals, too small, and the resistance is very low, secondly, if there are other fish in the water, then the small fish may not be able to eat food, and it is likely to become food for other fish.

Third, the problem of oxygen, if there is no equipment for oxygen exchange, not the kind of pond outside, even if it is an outside pond, the oxygen is more than at home, for example, there is grass in the water, for example, some parks also have equipment for oxygen exchange, or let the water circulate automatically, which can provide oxygen and let the fish survive.

Fourth, the above three reasons will lead to the death of small fish, you pay more attention to this situation, and now, the weather is cold, and small fish are also easy to freeze to death.

Fish rely on gills for gas exchange, it absorbs dissolved oxygen, and it will die if it does not change water and rain for a long time.

Is it that the water is too pure, or that the small fish is sick.

The fish will die! And you will be strong to live!

If it's a live fish, you have to wait for death, and if it's a dead fish, it's still like that, a dead fish.

Summary. Dear, it's nice for you, the reason why fish die out of the water is because they breathe with their gills, which can get oxygen when the water flows through the gill filaments, and in the air, the gills cannot function, causing it to suffocate. However, there are also some deep-sea fish that are suitable for the water pressure on the bottom of the sea, and will die because they are not adapted to the air pressure after leaving the water.

Dear, it's a pleasure for you, the reason why fish die when they leave the water is because they breathe with their gills, and when the water flows through the gill filaments, they can get oxygen, and in the air, the gills can't function, causing it to suffocate without shed. However, there are also some deep-sea fish that are suitable for the water pressure on the bottom of the sea, and will die because they are not adapted to the air pressure after leaving the water.

Dear, it's a pleasure for you, the reason why fish die when they leave the water is because they breathe with their gills, and when the water flows through the gill filaments, they can get oxygen, and in the air, the gills can't function, causing it to suffocate without shed. However, there are also some deep-sea fish that are suitable for the water pressure on the bottom of the sea, and will die because they are not adapted to the air pressure after leaving the water.

When the fish leaves the water, they die due to lack of oxygen. Fish can't breathe oxygen directly, they breathe oxygen through the gills this organ, the water flows in from the mouth of the god, flows out of the gill holes, and then constantly exchanges gas through the gills, but after the fish leaves the water, the gills will stick together, reducing the area of breathing finches, and the fish will die of lack of oxygen.

The fish is an etothermic aquatic vertebrate that swims by virtue of the swing of the tail and torso, as well as the coordination of the fins, for gas exchange through the gills.

Fish are the oldest vertebrates and can survive wherever there is water, including freshwater lakes, freshwater rivers, saltwater seas, and saltwater oceans.

According to the shape of the fish, it can be divided into spindle-shaped, side-flattened, club-shaped, and flat-flat. Among them, the spindle-shaped shape is the body type of most fish, so the yard segment is also called the basic type.

Fish need oxygen from the water to breathe, and capillaries in the gill filaments help with gas exchange. Once out of the water, the fish will suffocate due to lack of oxygen.

Fish mainly breathe through the gills, and the water flows in from the mouth and out of the gill holes, and the gas exchange occurs when the skin passes through the gills. Therefore, the gills have a special structure. Fish generally have 5 pairs of gill arches, the inner edge is a gill raker, and the outer side is 2 gill segments, and the gill is composed of countless gill filaments.

Each gill filament gives birth to many protruding gill patches, which are composed of two cells and have abundant microvessels, which are the site of gas exchange. The adjacent gills are staggered and the water is convected in them, guaranteeing maximum gas exchange between the blood and the water.

When the fish leaves the water, the gill filaments and gill pieces are adhered to each other, the breathing area is greatly reduced, and sufficient oxygen can not be supplemented, and the gill filaments are exposed to the air, and the gill filaments are dried out due to water evaporation, which destroys the structure of the gills and makes them lose their respiratory function and die. Although there are fish **, air sacs, and intestinal tubes that can assist breathing, those are far from enough.

Morphological characteristics

The appendages of fish are fins, which are locomotor organs for swimming and maintaining body balance. The fin is composed of a branched fin basal bone and a fin bar, and the fin bar is divided into two types, one is the angular fin bar, which is not segmented or branched, and occurs from the epidermis and is found in cartilaginous fishes; The other is the scaly fins or bony fins, which are derived from the scaly spike family, with segmented, branched or unbranched, and are found in bony fishes, and the fins are connected by thin fins.

There are two types of bony fin spines, which are formed by the deformation of a kind of fin spine, which is a hard spine that is neither branched nor segmented, and is possessed by higher fish. The soft strip is soft and knotty, and its distal branches (called branched fins) or unbranched (called unbranched fins) are formed by the merger of the left and right halves.