What are the factors that govern the degree of evolution of a species?

The reasons for the evolution of organisms are as follows:

1. The tendency of organisms to overreproduce and the limited resources cause a struggle between biological individuals.

2. The heritability of general differences and variations between biological individuals has resulted in individuals with favorable variations having more opportunities to survive and leave to future generations.

3. Favorable mutations gradually accumulate, and organisms continue to evolve into new types.

Evolution: Also known as evolution, in biology refers to the change of genetic traits in a population from generation to generation. The so-called trait refers to the expression of genes, in the process of reproduction, genes will be replicated and passed on to offspring, mutations in genes can change traits, and then cause genetic variation between individuals.

Creature. Some people think that living things are living things, and all living things are living things, then, on the other hand, whether living objects are all living things, the answer is no. Because not only living things have life, but also a part of living things can have life, for example, a green leaf, a heart to be transplanted, red blood cells and white blood cells in blood.

However, these living objects do not think that they belong to living things, so living objects are not necessarily living things. So, how should the concept of living things be defined? We found that animals are made up of each specific person, pigs, tigers, sparrows, mosquitoes, etc.

Thus, the animal itself is a collection of objects, and in the same way, plants, microorganisms, and living things are all collections of objects, and therefore, we can define living beings in terms of the concept of sets.

DNA mutations, some of which can be inherited, accumulate until reproductive isolation occurs, and new species are created. Over time, there is a huge gap between the extant species and the extinct species that are naturally selected, and this is evolution.

Natural Selection Darwin systematically expounded his theory of evolution in his book On the Origin of Species, published in 1859. The core principle of natural selection is to the effect that living things have a tendency to overreproduce, and that living space and food are limited, so living things must "struggle for survival".

Individuals in the same population have variation, and those with favorable variation that can adapt to their environment will survive and reproduce, while those who do not have favorable variation will be eliminated. If changes in natural conditions are directional, then in the course of history, after a long period of natural selection, small variations accumulate and become significant variations. This can lead to the formation of subspecies and new species ...

Darwin's theory of evolution, from the perspective of the interaction between organisms and the environment, believes that biological variation, heredity, and natural selection can lead to adaptive changes in organisms.

Organisms are constantly evolving and do not exchange genes, which eventually leads to the formation of new species.

As long as the frequency of genes changes, it is called evolution, and there is not necessarily the formation of new species.

The formation of new species entails reproductive isolation. The formation of new species is generally through long-term geographical isolation, so that the two populations that originally belonged to a species are isolated from each other and cannot communicate genes, and eventually produce reproductive isolation, once the reproductive isolation occurs, it means the formation of new species.

As long as the frequency of a gene changes, it is called evolution.

The formation of new species requires reproductive isolation.

Long-term natural selection can lead to populations in different regions evolving in different directions, leading to reproductive isolation and asking: Are Siberian tigers and South China tigers the same species? There's only geographic separation between them, isn't there?

Obviously, their gene frequencies are different, which means that they are the result of evolution.

After a long period of evolution, the same organisms are reproductively isolated from each other, and the biological characteristics and genes are very different, then the two organisms become two different organisms, and the species is formed.

Speciation leads to biological evolution.

There are two reasons for the evolution of organisms in nature: the internal cause is genetic variation, and the external cause is natural selection. In the process of reproduction, organisms will continue to produce mutations, many of which can be inherited, and these continuous heritable mutations are intrinsic factors in biological evolution.

In the process of survival, living organisms must have to fight against both the natural environment and other living beings. Natural selection adapts changing organisms to changing environments. Therefore, genetic variation provides the original material for biological evolution and is the internal cause of biological evolution.

Darwin believed that genetic variation played a decisive role in the evolution of organisms. Environmental factors are external factors to biological evolution. Organisms evolve through genetics, variation, and natural selection.

The directional selection of the environment determines the direction of biological evolution.

Genetic mutation is the first of evolution, limited resources, natural selection, and survival of the fittest is the source of power.

Three factors that affect the transition from strong to weak ,. Take people as an example ... 1. Eating and living, eating well, dressing well, sleeping well, and the speed of evolution is fast, the so-called eugenics.

For example, in the cold regions of Northeast Asia, Temujin grew up eating grass roots. (For example, eating big fish and meat for diabetes, not to mention eugenics, giving birth to children is a question, eating wild game, and the children born also have aura) For example, the children born to the big drunkard Tao Yuanming are all fools.

2. The law of the jungle (equivalent to passive exercise), the spread of infectious diseases, the elimination of the old, the weak, the sick and the disabled, can also evolve, but slowly, such as Europe.

3 Go with the flow, abundant natural resources, do not need much labor, lie down in the sun and do not starve to death, and the rate of evolution is slower, such as Africa.

To sum up, the fastest speed of evolution is food, clothing, housing, and taste of life, that is, Taoism often says that independent guarding the gods, the second fastest speed of evolution is passive and active exercise, and the third fastest speed of evolution is to go with the flow.

The world pays great attention to environmental protection, so most of the factors that affect biological evolution are pollution in the air, which can affect purification.

There are only 2, one is variation and one is selection.

Variation encompasses genetic mutations (the basis of all evolution), as well as recombination phenomena in genetic processes.

Selection can include natural selection, or it can contain artificial selection.

I think the first factor that affects the evolution of organisms is definitely genes, that is to say, genes determine the general direction of biological evolution, and then the second factor should be the environment.

There are many factors that affect the evolution of organisms, including internal and external, natural and human.