What is the reason for the absence of life at 150 kilometers under the sea?

Because it does not meet the basic conditions of biological life.

Living things live within the biosphere. The largest ecosystem on Earth, called the Biosphere. All living things on earth live in it.

Whether there is life on other planets is unknown).

There are no living things below 150 kilometers under the sea: one is light, but oxygen.

The scope of the biosphere is not given in biology, and it is not said how high the sky is and how deep the water is not the biosphere.

Current technology is not yet able to detect whether there is life below 150 kilometers below the seabed, everything is just speculation.

On May 31, 2009, the USS Poseidon robotic submarine developed by the Woods Hole Oceanographic Institution in the United States successfully dived for miles (about 11,000 meters) to explore the world's deepest Mariana Trench.

Amazingly, on the bottom of such a sea, scientists actually saw a fish and a small red shrimp swimming!

Without light, there would be no living organisms capable of photosynthesis.

So without oxygen, there can be no biological growth.

The main thing is that there is no light.

I think that there will be organisms living at a depth of 10,000 meters, because these creatures may not have sunlight, so in order to adapt to the environment, they may evolve organs that illuminate on their own, and many organisms will be white or transparent.

There are living creatures in the 10,000 meters underwater, and there are some creatures that have not been discovered by human beings in the deep sea.

I don't think there should be any living creatures at 10,000 meters underwater, because the water pressure at 10,000 meters is very strong, and the sunlight can't shine underneath.

Categories: Education, Science, >> Science & Technology.

Problem description: Are there any organisms 10 kilometers below sea level in the biosphere? What is it? People from all walks of life, please help me, a middle school student, hurry!

Analysis: Yes, yes, yes, there are microorganisms

There are some organisms under the ocean floor that do not need sunlight, and they have adapted to the dark environment due to long-term evolution Most of these organisms are microorganisms, and they rely on decomposing some material on the bottom of the sea as nutrients Microorganisms are almost everywhere To verify, here's a news article, you can take a look

The Research Center for Internal Earthness of the Japan Agency for Maritime Exploration and the Southampton Institute of Oceanography in the United Kingdom used a deep-sea unmanned probe to isolate shelled marine single-celled organisms foraminifera from surface deposits on the seafloor for the first time when they were detecting the Mariana Trench at a depth of 10,000 meters.

These foraminifera isolated from the seafloor surface sediment averaged 449 foraminifera per square centimeter, of which more than 85% were elongated sac-shaped and had a soft shell. They are all taxonomicly undocumented new species, and genetic analysis shows that the newly discovered shelled foraminifera and the shelled species commonly found in the ocean today followed two evolutionary paths about 8 to 1 billion years ago, and can be called living fossils on the seafloor. The results were published today in the American journal Science.

The deep seabed is a extreme environment of darkness, low temperatures, high pressure, and extreme nutrient deprivation, and like space, it is difficult for humans to reach. Scientists have long believed that marine organisms have undergone great evolutionary changes after the differentiation of shallow seas, and there are many species of organisms that still maintain ancient characteristics in the deep seabed, so they hope to understand the ancient environmental dynamics of the strata by observing the dynamics of sediments and water boundaries in the deep seabed. The results of this study support the above theory by proving that foraminifera lived in the deepest part of the world's oceans between 8 and 1 billion years ago and followed different evolutionary paths.

This achievement is of great significance for the future unraveling uncovered areas such as the biological functions that survive at depths of 10,000 meters and the role played by the material cycle on the surface of the ocean and the earth's crust. It is believed that the biota that survive in the trench is an ecosystem that relies mainly on photosynthesis, but due to the lack of food in the deep sea, eukaryotes living in this extreme environment may coexist with bacteria to obtain nutrients. In the future, genetic analysis and histological studies using electron microscopy will be able to understand the environmental adaptation mechanism of organisms in the extreme environment of the deep sea and the physiological structure of symbiosis with bacteria, which will have a positive significance for the discovery of functional genes that can be used.

Due to the existence of trenches of various shapes on the deep seabed, recent studies have predicted the distribution of different species of biological communities in different ocean trenches, which can understand the emergence of ocean trenches and the evolution of trench biological communities, and can fill a gap in the history of life development.