How did the world start to have living things, and how did the world s first living things come abou

evolved over a long period of time.

All living things on Earth, in the final analysis, are made up of amino acids.

Amino acids make up proteins, and proteins form the framework of all living things, and some fats, sugars, phospholipids, and so on.

So what is the origin of the complex organisms on Earth?

We know that viruses and other things, they can replicate themselves, they can live, grow old, sick and die, in a sense, they are a kind of living things, they have living characteristics.

And the components of viruses, most of them are proteins and nucleic acids, and some don't even have nucleic acids, just a protein.

Viruses, the tiniest of lifeforms, have the ability to genetically replicate, self-improve, and mutate, so it is conceivable that viruses can evolve into higher organisms, such as bacteria, such as coelenterates, such as insects, and even mammals.

So perhaps all living things on Earth evolved from tiny organisms made up of proteins and nucleic acids like bacteria.

So where do proteins and nucleic acids come from? It is now commonly said that when the earth was first formed, that is, billions of years ago, the earth was not very stable, and storms and volcanic eruptions were commonplace, so the chemical reactions at that time were far more intense than now. It was by chance that life substances - amino acids were born on the earth.

This question is the fundamental difference between the long-term debate between the theory of species invariance and the theory of biological evolution According to the theory of species invariance, the ancestor of chickens is always chickens, and of course it is not clear who comes first between chickens and eggs.

This question is not forever debated, and was completely resolved by Charles Darwin a hundred years ago.

According to the theory of biological evolution, chickens did not always exist, they belonged to birds, and birds and mammals evolved from reptiles.

Reptiles and birds have many differences, but one thing is the same, they are all oviparous animals, such as snakes, turtles, and even reptiles such as dinosaurs laid eggs, that is, before the appearance of the species chicken, its ancestors had eggs.

The most primitive chickens were born from these eggs, except that the eggs before the appearance of chickens were not called "eggs", but other eggs.

So it's safe to say that there are eggs first and then chickens.

In fact, this question belongs to the same principle as "man was transformed from an ape", and understanding it will help us establish a materialist world view

This is because there are various conditions on the earth where living things can exist.

For example, the distance between the Earth and the Sun is moderate, which produces the right temperature, and the mass of the Earth is moderate, so that there is an atmosphere on the Earth's periphery! It is very important to know that there is an atmosphere, because without an atmosphere, the temperature on the side facing the sun can reach up to 183 degrees Celsius, and it is impossible for life matter to exist!

And then there is water, because water is a necessary condition for all living things, is it okay for me to answer like this? Hehe, if you are interested, you can go and see the first chapter of the geography book in the first year of high school, hehe, I am the teacher who teaches geography.

Because the earth has a suitable environment for living.

1. The temperature is moderate, that is, the distance from the sun is moderate, neither cold nor hot.

2. There is an atmosphere that can protect life, especially the ozone layer that blocks ultraviolet rays.

3. It has a stable magnetic field that can resist the "solar wind" and other deadly high-energy cosmic rays.

4. The composition of the atmosphere is reasonable, there is oxygen for breathing, carbon dioxide for the production of oxygen, and a stable nitrogen for most of the atmosphere, which prevents organic matter from being too active and burning.

5. There is water, which is said to be brought by an asteroid.

6. There are amino acids, which are the initial and basic substances of life.

Everything in the world is alive, not necessarily alive. Life is not simply a means of speaking, walking, and growing... We share characteristics with ordinary creatures.

There are ways to understand each other, so we stipulate that they are alive. And if there is no us in the world, the universe, there is only a pile of stones, which seems cold, but the stones and stones may also think that each other is alive. Everything in the world is so wonderful and so elusive.

Living matter is also relative to non-living matter!

There are many ways for scientists to say this, but I think the following one is the most appropriate.

Hundreds of millions of years ago, there were no living things on the earth, but after a series of physical processes such as volcanic eruptions, wind and rain, thunder and lightning, organic matter that makes up living organisms can be formed.

According to environmental experts, scientists once estimated that there were 1.5 million biological species in the world. With the deepening of scientific research, this number has risen to 30 million 50 million. Tropical rainforests are home to more than half of the world's species.

When the earth was formed, during violent geological movements, methane, water vapor and other gases were reflected and released.

Earth's gravitational pull. Rotation and revolution. Firmly grasped a part of the (primitive atmosphere).The environment was extreme - volcanic.

provides temperature - energy), ultraviolet light.

Strong (promotes mutation), thunder and lightning (promotes synthesis).At the same time there are a large number of .

Amino acid. The material conditions of life).Amino acids do not need to be combined under extreme conditions (chemically conditional, of course).

A very small fraction of them accidentally form primitive RNAs with rudimentary life characteristics(Now there are experiments that have done it; A glass sphere is filled with methane and other gases (simulating the original atmosphere) and a large amount of amino acids are added in an environment of continuous discharge. Synthetic raw RNA!!

Raw RNA can combine amino acids to form complex RNAOver the long years, RNA - DNA - active proteins (initial life) - even longer years - single cells.

Algae. real life) - a brief time in the blink of an eye - humanity appeared (evolutionary processes omitted in between).

What is the concept of living beings.

A living thing is a collection of objects whose elements include: a living object with the ability to survive and reproduce produced by chemical reactions under natural conditions, and a living offspring produced by it (or them) through reproduction.

So you should think clearly about why you are conscious.

There is awareness. After the concept.

There are creatures. In fact, the world is a sort of combination.

Sorting has a concept.

And there are creatures.

So biology is a sorting.