Is there sunlight and oxygen at the deepest seabed, and how can life survive there?

Movie "Godzilla".

, the bottom of the sea is inhabited by many unknown monsters. Not only are they huge, but they are also hot-tempered. Fortunately, these monsters are always asleep without being disturbed by external factors and will not affect humans.

So, in the reality of the ocean floor, do beasts really exist? Although human beings have not stopped exploring the ocean since ancient times, they have had little success. So far, the deepest human access to the ocean floor is only about 3,000 meters.

Even with the help of various submarine probes, the deepest ocean floor known to mankind is just over 10,000 meters. As for what is at the bottom of the sea at a depth of more than 10,000 meters, it cannot be detected by human current technology.

Although humans have not really reached the bottom of the sea, scientists.

It has been deduced from the available data that the life at the bottom of the sea is enough to scare away humans. For example, divers have found squid at a depth of 1,000 meters, and at a depth of more than 2,000 meters, divers have found largemouth squid. For example, a red fish was also found in a deep submersible at a depth of more than 8,000 meters.

From this result, it can be inferred that although the organisms appear smaller and smaller as the depth increases, there are still organisms on the seabed. On the one hand, this situation may be due to the harsh living environment in Haiti, which not only increases the pressure in the seawater, but also makes it difficult for other organisms to survive on the seabed.

Especially the closer you get to the bottom of the sea, the more obvious the pressure from the race, which directly causes other creatures to dare not live on the bottom of the sea. While this second possibility is just speculation by scientists, it cannot be ruled out. After all, the ocean is so big, it is entirely possible to give birth to powerful creatures.

But I think if there were real creatures in the deep sea, there should be oxygen, but oxygen has become a problem since the first day, because sunlight cannot reach the depths of the seabed, and without a light source, there is no photosynthesis.

So oxygen can't be produced, so oxygen should come from oxygen that is soluble in water, because the deeper the water, the greater the overlying pressure, the solubility of the gas.

The larger. Fish gills.

It is used to filter oxygen from water. When seawater freezes in the Arctic and Antarctic, it sinks and then flows back into the tropical ocean through the deep sea.

I remember that the frozen sea zone has more oxygen than the warm sea, so as long as the oxygen consumption of the seabed is not large, it can be used for a long time. <>

Algae. Oxygen is produced in sunlight, but it is consumed when it is dark. When it consumes too much oxygen at night, it can't even survive. When the day dawned, the sea became fishy. It is because of seaweed.

Float on the surface of the sea. There is no sunlight in the deep sea, but these problems do not happen. Thus, in the lower reaches of the middle sea water to the area below 4 degrees Celsius, even at a depth of several kilometers, the water remains at 4 degrees Celsius and the density remains the same.

Therefore, the water at 4 degrees can be mixed at will, which will help the oxygen to be transferred to the deep sea through diffusion and convection. As long as there was oxygen on the surface of the sea thousands of years ago, the deep sea will become oxygenated over time, and the process will be slow and endless.

There is very little sunlight and almost no oxygen, but the organisms there may not need sunlight and oxygen, and they rely on some microorganisms to survive.

There is no sunlight at the deep bottom of the sea, and the oxygen content is relatively low, and the energy consumption of organisms here is relatively small, and the number of natural enemies is relatively small, but he will use the energy near the submarine volcano.

Of course not. These animals survive by chemical synthesis, by some chemical processes to generate a certain amount of heat on the seabed, and then survive on this heat.

There is no sunlight in the deepest part of the ocean, but there is oxygen, and those creatures spend their time in the dark, so their appearance is also very strange.

Yes, but only a small part of the creatures there survive mainly by eating sea creatures or children's grass.

The creatures there do not need sunlight and oxygen to survive, and their living conditions are relatively simple.

They also live like other creatures, because they are genetically selected to live in such an environment.

There is a biome near the crater of the ocean floor that does not rely on photosynthesis, but on volcanic heat for sulfur-based life, mainly some tuberopods.

The deepest part of the Mariana Trench is currently the deepest known place in the ocean. Darkness, low temperatures and tens of thousands of tons of water pressure make this one of the harshest areas on earth.

Large octopus, exploring the world has been introduced.

Primitive fish, some of which are known as water monsters.

As the crust of the ocean floor moves, seafloor fissures are created, and when seawater seeps into these cracks and circulates inside, the water temperature rises to about 350 degrees Celsius. Hot water dissolves minerals (mainly sulfur) from nearby rocks, and under the action of high heat and pressure, reacts with the water to form hydrogen sulfide, cultivating foul-smelling and toxic things, which is the energy of some organisms near the crater**.

The origin of life has always been the subject of research by scientists, and from the current research results, it is generally believed that life originated in the ocean. Water is an important component of life activities, and the shelter of seawater can effectively prevent ultraviolet rays from killing life. About 4.5 billion years ago, the Earth was formed.

About 3.8 billion years ago, when the Earth's land was still barren, life began to grow in the roaring oceans – the most primitive cells with structures similar to those of modern bacteria. After about 100 million years of evolution, primitive cells in the ocean gradually evolved into primitive single-celled algae, which are probably the most primitive life. As a result of the proto-algae multiplication, and photosynthesis takes place, oxygen and carbon dioxide are produced, which prepare the conditions for the evolution of life.

This primitive single-celled algae underwent hundreds of millions of years of evolution, giving rise to primitive jellyfish, sponges, trilobites, nautilus, clams, corals, etc., and fish in the ocean appeared about 400 million years ago. Due to the attraction of the moon, the phenomenon of ocean tides is caused. At high tide, the sea crashes against the shore; At low tide, large areas of shallows are exposed to the sun.

Some of the organisms that used to inhabit the ocean have been trained in the intertidal zone at the junction of land and sea, and at the same time, the formation of the ozone layer can prevent the damage of ultraviolet rays, making it possible for marine organisms to land, and some organisms survive on land. At the same time, countless primitive lives died in this drastic change, and the lives left on land withstood the harsh test, adapted to the environment, and gradually developed. About 200 million years ago, reptiles, amphibians, and birds appeared.

And all mammals are born on land. Part of them is back in the ocean. About 3 million years ago, humans with a high degree of intelligence appeared.

Since the early 70s of the 20th century, when American scientists discovered numerous biomes in hydrothermal vents at a depth of 2,500 m on the Galapagos Rise in the eastern Pacific Ocean, people have gradually realized that there are two oceans, blue and black, and that there are two kinds of primary productive forces and their food chains on the earth. The blue ocean uses plankton as its primary productive force, and obtains energy from sunlight; The Black Ocean, on the other hand, uses hydrothermal bacteria as the primary productive force, mainly relying on microorganisms to reduce the sulfur oxides in the seabed hydrothermal system through chemical synthesis to obtain energy.

That's why so many biomes are found around a large number of seafloor "chimney" hydrothermal vent systems. Deep-seabed microorganisms are mainly distributed in two major environments: first, the hydrothermal fluid itself contains a large number of thermophilic bacteria, which are ejected out of the seabed along with other hydrothermal materials, attached to and deposited in hydrothermal vents, and volcanic rocks also contain a large number of bacteria; The second is the microorganisms present in the sediments of the seabed and in the strata below the seafloor.

For more than a decade, scientists have discovered a large number of microorganisms on the deep seabed, and even a large number of biological communities are still alive around some deep-sea hot vents or hydrothermal vents. Why can these microscopic organisms survive freely in such a harsh environment? When it was first discovered, marine biologists found it a difficult mystery to explain.

Marine scientists have also found that acetate in general marine sediments is not abundant enough to allow a large number of microorganisms to survive. Therefore, scientists are very puzzled by this. After several simulations, they found that when the temperature rises, the organic matter in the seafloor sediment will decompose more quickly to form more acetate nutrients.

This would reasonably explain why a large number of microorganisms thrive around hydrothermal vents or hydrothermal vents.

Later, in order to confirm this hypothesis, scientists took a deep submersible to sample and analyze the geological sediments near the hydrothermal vents and hydrothermal ejection outlets at the bottom of the deep sea, and found that the acetate content was much higher than that of other components, and the higher the temperature, the higher the content of this substance. Recently, scientists from the United Kingdom and Norway have found that when marine life dies, it sinks to the bottom of the sea, where it gradually accumulates to form deposits rich in organic matter. These organic substances gradually decompose into nutrients called acetate, which provide microorganisms with the carbon, oxygen, sulfur and other essential elements they need to survive.

Italian scientists have shown that the DNA of dead organisms provides 4% of the carbon, 7% of nitrogen and 47% of the phosphorus needed by microorganisms living on the seabed. When microorganisms "eat" the extracellular DNA, they quickly "regenerate" phosphorus, which means that they convert the phosphorus in the DNA into an inorganic form that can be used by phytoplankton and other photosynthetic organisms that live on the surface of the ocean.

Creatures of the deep sea do not live on sunlight. They live on food left over from organisms in the upper waters. Including the remains of organisms in the upper waters.

Creatures have their own way of living, and some creatures don't need the sun to survive!

Underwater creatures (in the depths) don't need sunlight and other sun-related things, they are blind. They only need air, water, heat, and food to survive.

The first is the sea snow, which is the biological residue that drifts down from the upper layers of the ocean. Second, there are volcanoes on the ocean floor that heat the seawater, and some marine life depends on this heat. The oxidation of metals such as tertiary iron can also produce some heat.

It doesn't always depend on the sun to survive, there is a lot of material in the ocean that can allow the life on the bottom of the sea to survive.

Not all living things need to live on the sun, and there are many cave animals on land, as long as there is enough food, there may be creatures. Most plants on land rely on sunlight for photosynthesis, producing organic matter to provide food for herbivores, and herbivores to provide food for carnivores, and animals rely on sunlight to synthesize some vitamins, but this is just our common animals and plants. In the deep sea, entire chains of organisms may exist.

For example, microorganisms that live on geothermal energy, planktonic algae, fish or other animals that feed on algae, carnivores that feed on them, ......

Animals in the depths of the ocean don't need sunlight.

You don't need the sun, when the sun shines, it will die.

There is a fungus in the sea that can glow.

This is a matter of biological evolution, and some organisms can survive without the sun.