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There are many wonders in the world, we humans still have very little research on the earth, there are still many creatures on this earth that we can't explore, when we study it, we will always feel very surprised, for example, we think that life must have a beginning and an end, and we must absorb a corresponding energy to continue to grow, but this world is always full of too many unknowns, attracting us to explore it.
1. Ordinary people know very little about water bears, and they don't know what kind of creature it is, but when you really understand, you will find that water bears are simply a loophole in nature, a small water bear, life can reach almost hundreds of years, it seems to be able to avoid time, water bears are not only immortal, but also can survive in various environments, even in a vacuum, whether it is high radiation or high pressure, high temperature and low temperature, it can live strongly. Its bizarre way of life has also broken through our understanding, and scientists have not been able to solve this mystery so far.
Second, the immortality of the lighthouse jellyfish mentioned earlier that the life span of the tardispeller can reach hundreds of years, so now it is introduced that the life of the lighthouse jellyfish is really immortal, not that it can always keep the status quo unchanged, because it can be repeated indefinitely, from juvenile to adult and then into juvenile, constantly repeating these steps, it is a bit similar to the ability of rejuvenation, and its ability is not limited, so theoretically speaking, they can live forever, if human beings can solve such mysteries, Maybe human beings can live forever.
Third, the green leaf sea snail we often say that the world is big, the meal is the largest, but for some ** people, often dream of not eating or drinking, do not need to take in any energy, can still live a healthy life, there is a snail in nature does not need to eat anything, can still live, it is the green leaf sea snail, perhaps because this snail eats a lot of seaweed, seaweed in the body is constantly converted into chloroplasts, and then through photosynthesis, the snail can directly absorb energy.
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There are no living beings on earth that go against the laws of life. Because the ecosystem on Earth is a whole. Creatures that do not conform to the laws of life have been eliminated before they appeared.
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No. There are creatures on the earth that follow certain laws of life, and there are no creatures that violate the laws of life.
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Sea horse. This creature is not reproduced by females, but the females place their eggs in the male fertility sac, and the males are responsible for fertilizing and giving birth to a baby hippony.
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As long as there are certain conditions, there will be life. The Earth is in the ** segment of the Milky Way, which is neither sucked in by a black hole nor thrown out of the body by the Milky Way, and the Earth also has a super-large bodyguard; Jupiter. Without Jupiter, the group of meteorites that hit the Earth would have been about a thousand times larger than it is now.
Some scientists have suggested that life on Earth may have been seeded by comets, and the 2006 blood rain in India confirmed this idea. A tenacious cell that can survive below 4,000 degrees Celsius was found from the blood rain, not a spores. Therefore, life comes from the extraterrestrials, and the earth is the caretaker, and it is just the right caretaker, so the life that appears on the earth continues to survive again and again.
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With the reduction of various resources on the earth in recent years, people have also stepped up the exploration of outer space, hoping to find a more suitable planet for habitation. Regrettably, however, so far we have not found the ideal planet, nor have we found the alien civilization we have been looking for. One has to accept that perhaps we are indeed intelligent beings who exist alone in the universe.
The Earth is capable of producing life, while other planets cannot, and the main thing is that the Earth is in a moderate position from the Sun.
The Earth's proper location in the solar system is a prerequisite for the Earth to produce life. There are eight planets in the solar system, Mercury and Venus are in front of the Earth, and Mars, Jupiter, Saturn, Uranus and Neptune are behind the Earth; The earth happens to be in third place. It is also the position of the earth that makes the earth the chosen planet in the solar system, the two planets in front of the earth, too close to the sun, their surface temperature is hundreds of degrees Celsius, too high temperature makes them unable to produce life; The planets behind the Earth are too far from the Sun, and their surface temperatures are too low to produce life.
Only when the Earth is just right from the Sun can there be a suitable temperature on the Earth, which also provides the conditions for the emergence of life.
The thickness of the Earth's atmosphere is also moderate. Sunlight contains many substances that are not friendly to living things, and when it passes through the atmosphere, some of the harmful substances are absorbed. The sunlight that reaches the earth is already very mild and will not harm the life of the earth.
Other planets do not have a suitable atmosphere, they are either too thick or too thin to provide a good environment for life to emerge.
In short, the earth can produce life, or because it has a suitable position in the solar system, moderate mass, gravity, etc., all of which give the earth a stable environment, so that life can reproduce in a relatively stable situation. After trillions of years of evolution, there are still various resources on the earth, and it can be said that the earth has become quite friendly to humans.
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The first chapter of the Bible, the origin of life, the hidden creation of the sun, moon and stars, the answer is very clear, but you don't believe it
And God said, Let the water multiply and multiply living things; Let the birds fly above the earth, in the sky.
And God made great fish, and every living creature that grew out of the waters, according to their kinds; And he made every kind of bird, every according to his kind. God looks good.
And God blessed all of them, saying, Grow in multiplication, and fill the waters of the sea; and the birds shall be multiplied on the earth.
And there was evening and there was morning, the fifth day.
And God said, The earth shall bring forth living creatures, every man according to his kind; Livestock, insects, wild beasts, each according to its kind. And so it happened.
So God made beasts, every man according to his kind; livestock, each according to its kind; All the creeping things of the earth, according to their kinds. God looks good.
And God said, Let us make man in our image, according to our likeness, and let them have dominion over the fish of the sea, and over the birds of the air, over the cattle of the earth, and over all the earth, and over all the creeping things that creep upon it.
God created man in his own image, but he made man and woman in his image.
And God blessed them, and said unto them, Be fruitful and multiply, and fill the earth, and rule over it, and control the fish of the sea, and the birds of the air, and every living creature that moves on the earth.
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After the formation of the earth in the universe, it began to be lifeless.
After a long period of chemical evolution, it means that the organic elements in the atmosphere, such as hydrogen, carbon, nitrogen, oxygen, sulfur, phosphorus, etc., are synthesized into organic molecules under the action of various energy sources in nature (such as lightning, ultraviolet rays, cosmic rays, volcanic eruptions, etc.).
These organic molecules are further synthesized into biological monomers.
These biomonomers are further polymerized into biopolymers.
Such as proteins, polysaccharides, nucleic acids, etc.
This process is called chemical evolution.
After the advent of protein, the simplest life was born.
The first life evolved step by step from non-living matter through extremely complex chemical processes over an extremely long period of time after the earth's temperature dropped.
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The distance between the sun and the earth is moderate, and the temperature is suitable.
There is liquid water; The Earth's moderate volumetric mass allows the Earth to attract an atmosphere suitable for living beings to breathe.
The sun's illumination conditions are stable.
The nine planets orbit the Sun in a coplanar and isotropic manner, and do not collide with each other. Therefore, the interplanetary space in which the Earth is located is safe and stable.
In short, the reason for the existence of life on Earth is stable light conditions, a safe cosmic environment, a suitable atmosphere and temperature, and liquid water.
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When the Earth formed in the universe, it was initially lifeless. After a long period of chemical evolution, that is, organic elements such as hydrogen, carbon, nitrogen, oxygen, sulfur and phosphorus in the atmosphere are affected by various natural energy sources (such as lightning, ultraviolet rays, cosmic rays, volcanic eruptions, etc.), synthesizing organic molecules (such as methane, carbon dioxide, carbon monoxide, water, hydrogen sulfide, ammonia, phosphoric acid, etc.). These organic molecules are further synthesized into biological monomers such as amino acids, sugars, adenosine, and nucleotides.
These biomolecules are further polymerized and become biopolymers. Such as proteins, polysaccharides, nucleic acids, etc. This process is called chemical evolution.
The advent of protein has brought about the simplest of life. This is an event that took place more than 3.6 billion years ago. Since then, there has been life on Earth.
The most basic difference between living and non-living matter is that it can absorb from the environment what is needed in the life process and discharge the substances that are not needed in the life process. This process is called metabolism, and this is the first distinction. The second difference is the ability to replicate.
Any living individual, no matter how different the form of reproduction, has the ability to reproduce new individuals. The third difference is the ability to inherit.
This roughly the same phenomenon is most meaningful and deserves our attention. Because it indicates that it is somewhat different from the previous generation trait, this is different from the previous generation trait called variation.
If this mutated trait is able to survive in the environment, it will enhance and become an inherent trait of new generations. Organisms are constantly mutating and continuing to be inherited, and with the passage of time, new individuals with new characteristics are constantly emerging, so that organisms are constantly changing from simple to complex, constituting the evolution of biological systems. The shape and characteristics of early life on Earth.
The earliest life forms on Earth were very simple. A unit is an individual. It doesn't have a nucleus.
We call it a prokaryote.
Relying on the direct absorption of nutrients from the environment by the cell surface to sustain life, this lifestyle we call heterotrophication. At that time, their living environment was hypoxic, and this kind of preference for living in an anoxic environment was called anaerobic bacteria. Thus, the earliest prokaryotes were heterotrophic anaerobes.
It was originally spherical, later it became oval, rod-shaped, elongated filaments that became spiral-shaped, and so on. From the point of view of the development direction of morphological change, it is to increase the contact between the body and the external surface area and increase its volume. The bacteria and cyanobacteria that now live on the earth are prokaryotes.
The occurrence and development of cyanobacteria has accelerated the increase in oxygen levels on Earth. Since more than 200 million years ago, not only has there been a lot of oxygen in water, but also in the atmosphere.
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This is naturally occurring, because proteins can appear in the water after a long period of brewing. Then there is life, and in this way life is an ancient method of generation.
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Life on the earth is actually really naturally generated, and the earth, as a very small star in the universe, developed into the earth today after the collision of various planets, so life on the earth must have been naturally generated.
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Yes. Life on Earth evolved and then came into being, and we have learned a lot of books about tracing the origin of life.
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Is there life beyond the earth, this is definitely a big discovery in the future!
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