What doctrine did Darwin propose, and what was its core content?

Bioevolutionary Theory.

In the middle of the XIX century, Darwin.

1809-1882) on the one hand, inherited the correct views of Buffon (1707-1788) and Lamarck (1744-1829) in the theory of biological development, and integrated their masterpieces; On the one hand, through his own long-term investigation and practice, he raised the theory of biological development to a more complete and mature stage, and established the theory of evolution.

The main contents of Darwin's theory include the theory of artificial selection and natural selection, the theory of heredity and its variability, and the theory of speciation. Darwin's theory of evolution, that is, his 1859 publication of the origin of species, demonstrated the evolution of living things and its mechanisms, established a historical materialist view in biological science, and overthrew idealism and metaphysics.

Species creationism, species invariance, teleology, and cataclysm.

Darwinian theory can be summed up in four words: overbreeding, struggle for survival, genetic variation, survival of the fittest.

Hello, Darwin came up with the famous "Origin of Species", that is, the theory of evolution! The core content is that all living things are not created by God, but are constantly evolving and changing from simple to complex, from low to high, in heredity, variation, struggle for survival and natural selection. (For example, humans are orangutans).

Darwin proposed the theory of biological evolution, the core of which is natural selection.

Darwin put forward the theory of evolution of living things, the core content of which is natural selection, the survival of the fittest, and published the book "The Origin of Species".

Darwin. Natural selection was proposed.

Artificial selection of two well-known evolutionary theories.

Natural selection refers to the natural selection, survival of the fittest, survival of the fittest, elimination of the unfit, in the process of natural selection, only the messenger can survive the adaptation, there is only a relative meaning to survival, once the living environment changes, the original adaptation may become unadaptable.

Artificial selection refers to the variation of plants in a planned selection that is beneficial to humans.

Gradual accumulation and enhancement is essentially a process of survival of the fittest.

The doctrine of natural selection was Darwin's main thing.

Darwin's theory of evolution is an evolutionary theory based on natural selection. Darwin pointed out that living things have universal variation. Darwin demonstrated this with a wealth of information by comparing domestic variation with natural variation.

Natural selection, living beings have a universal struggle for survival. Organisms reproduce in geometric progressions, which inevitably creates competition for survival. Each creature is produced in much more numbers than there are surviving creatures.

Intraspecific struggles, interspecific struggles, and the struggle between organisms and the environment are the three main aspects of the struggle for survival.

Natural selection is the central theory. Nature selects all the variants and allows the most adapted ones to survive. These surviving variants leave the most offspring.

For evolution, only those heritable variations matter. Darwin argued that natural selection was superior to artificial selection. The consequences of artificial selection are insignificant compared to the cumulative results of "nature" over geological time.

Nature is far more clever than artificial!

Darwin's theory of natural selection has four main points: overbreeding, the struggle for survival (also called survival competition), heredity and variation, and survival of the fittest.

Overreproduction Darwin found that all kinds of organisms on the earth generally have a strong reproductive ability, and all have a tendency to grow according to geometric proportions. The elephant is a very slow animal to reproduce, but if each female gives birth to six litters in her lifetime (30 to 90 years old), each of which lives to be 100 years old, and is able to reproduce, then after 750 years, the number of offspring of an object can reach 19 million. Therefore, according to theoretical calculations, even animals and plants that do not reproduce very quickly will produce a large number of offspring and occupy the entire earth in the early period of Sun San.

But in fact, for tens of thousands of years, the number of elephants has never increased to that much, and the reproductive ability of many creatures in the self-excavation realm far exceeds the reproductive capacity of elephants, but the number of various organisms has maintained a relatively stable state for a certain period of time. Darwin thus thought of the struggle for survival.

1. Darwin's main contribution was the publication of The Origin of Species, which made the diagnosis of the theory of biological evolution, thus destroying all kinds of idealistic creationism and the immutability of species. In addition to biology, his theories have had a significant impact on the development of anthropology, psychology, and philosophy. Engels listed the "theory of evolution" as one of the three major discoveries of natural science in the 19th century (the other two being the cell theory and the law of conservation and transformation of energy), which made outstanding contributions to mankind.

2. Darwin believed that there is a struggle for survival between living things, and that the adaptors survive and the unfit are eliminated, which is natural selection. It is through heredity, mutation, and natural selection that living things evolve and develop from low to high, from simple to complex, and from few to many.

Darwin's structure is: Darwinian (semi-enclosed structure) Er (upper and lower structure) and Wen (single structure).

Darwin's structure is: Darwinian (semi-enclosed structure) Er (upper and lower structure) and Wen (single structure). The pinyin is: dáěrwén. The phonetic pronunciation is:

What is Darwin's specific explanation, we will introduce it to you in the following aspects:

1. Explanation of terms [click here to view the details of the plan].

Darwin dá'ěrwén. (1) (1809-1882) English biologist.

Poems about Darwin.

Playing with the moon in the Pacific boat. Darwin tastes the moon and emerges from the earth", "Darwin: Competition Follows Evolution".

Idioms about Darwin.

Rebel against your own selfishness, but you can't make friends with Ererya, gentle and gentle.

Words about Darwin.

Zhiwen Da Lier Ru Traffic Wen Da Lier Ya Wen Wen Gong Er Forget Self Zhi Wen Da Li Wen Ya Tong Wen Da Li Tong Wen Da Art.

Sentence formation about Darwin.

1. Hundreds of people are receiving ** in the hospital and around Darwin.

2. The reactionary forces of religion regarded Darwin's theory of biological evolution as a beast of prey, and tried their best to slander it.

3. The long-hidden theory of "moral choice" in Darwin's theory is regarded as "the other half of the high Ballinism", which shows that the main driving force of biological evolution is love, not "selfish genes".

4. Charles Darwin, the British biologist, founded the theory of evolution.

5. Much of the civilized world is based on a series of training activities. This is the purpose of culture. According to Darwinism, the formation of man seems to be the original sin of the monkey, and it is impossible for a creature to completely get rid of what forms the basis of his existence.