Is Darwin's Theory of Biological Evolution Perfect?
Darwin's theory of biological evolution was not perfect. From the perspective of the theory itself, the core ideas included genetic variation and natural selection. In terms of genetic variation, with the development of modern genetics, people discovered more complex genetic mechanisms, such as the interaction of genes, epigenetics, etc. These were not known when Darwin proposed the theory of evolution, which showed the limitations of the theory to a certain extent. From the perspective of evidence, although a large number of fossil discoveries and genetic genetics research results supported the theory of evolution, there were still some disputes about the so-called " missing links." Although modern biologists had explained it from the perspective of evolutionary trees, this also reflected the challenges of the theory in explaining certain details of the evolutionary process. In the historical context of that time, Darwin's theory of evolution subverted traditional concepts such as species constancy. In the subsequent development process, modern science also continued to supplement and develop on its basis. For example, in the 21st century, based on the molecular clock, the protein PAM matrix and BLOSUM's aa matrix were used as evidence to continue to develop Darwin's theory of evolution on the basis of molecular genetics and evolutionary dynamics. This also showed that there was room for development in Darwin's theory of evolution, and it was not a perfect theory. Read more exciting novels for free
Darwin's Theory of Biological Evolution
A General Situation of Darwin's Theory of Biological Evolution
Darwin's theory of biological evolution was a scientific proof of the origin and development of species. There were two core points: genetic variation and natural selection. Prior to Darwin, the mainstream scientific community believed that species were "unchangeable." After traveling around the world for scientific research, Darwin proposed that the form of a species was not always the same, but there were random natural mutations (which could now be explained as small mistakes in the replication of genetic code, with good and bad consequences). For example, the evolution of girafs. When the environment changed (such as a long drought that caused the grassland to dry up), the long-necked deer could eat the leaves to survive and reproduce, while the short-necked deer died because they could not obtain food. After many generations of evolution, the giraff population stabilized and replaced the short-necked deer. The theory of common ancestor was an important part of the theory of evolution, which required the complete abandonment of the theory of species invariable. When analyzing the fossil record, Darwin refuted Lamarck's orthodoxy and catastrophism. He skillfully used the hypothesis-deduction method, proposed geological evidence, and developed a general evolutionary principle. He emphasized that the variation of each species had nothing to do with other species, and each species had its own rate of evolution. Darwin also believed that extinction was a necessary accompaniment to evolution. When environmental conditions were no longer suitable for a species, the species would gradually disappear. Moreover, biological factors were more important than physical factors. The descendants of improvements and changes might cause the parent species to become extinct, and a species might be eliminated by other species. There were already some evolutionary theories before Darwin, but he presented complete scientific evidence that all living species evolved from a few common ancestors through a long process of natural selection. His Origin of Species launched a revolution on the religious creationism and the invariable species theory. Although it had been the focus of religious debate since its birth and some people opposed it, a large amount of evidence from human studies to molecular biology supported the theory of biological evolution. In the 21st century, the theory of evolution continued to develop on the basis of molecular genetics and evolutionary dynamics. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The influence of Darwin on biological evolution
Darwin was the main founder of the theory of evolution. His most important contribution was to complete two theoretical breakthroughs: one was to propose the theory of common origin, and the other was to propose the theory of natural selection. In terms of the theory of common origin, Darwin compared and analyzed the similarities and differences of the ground finches on different islands of the Galapagos Islands, as well as the similarities and differences between these island ground finches and the neighboring South American ground finches. He pointed out that the different ground finches on the Galapagos Islands had a common ancestor, and then inferred that all creatures had a single origin. This theory was supported by many pieces of evidence. In the field of biochemistry, the ground finches from the South American continent in the Galapagos Islands mutated due to different food resources, forming a variety of unique ground finch species. In the morphological comparison study, for example, the upper limbs of humans, the forelegs of horses, the fins of dolphins, and the winged hands of bats, although their functions and appearances were different, their skeletal structures were similar, and there were similarities in the structure. Different species could determine the distance of kinship by analyzing the structure of the same and non-same species. Embryology also showed that all vertebrae had similar stages in the early stages of embryonic development. These were all strong evidence for the theory of common origin. The fossil record also provided direct evidence for the theory of common descent and biological evolution. For example, the equine fossils showed obvious evolutionary trends. Darwin's theory of natural selection was also an important part of his theory of evolution. He assumed that species changed gradually and that the facts collected during the voyage could be logically explained. In short, the theory of evolution of Darwin had a fundamental significance in the field of biological evolution research, which laid a solid theoretical foundation for the development of modern biology. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Which masterpiece is Darwin's theory of evolution?
Darwin's theory of evolution was a monumental work commonly known as the Origin of Species. It was published by the British biologist Charles Darwin in 1859. It is considered to be the foundation of modern biology. It has had a profound impact on biology, ecology, ecology, archeology and other fields.
Which science book is Darwin's theory of evolution from?
The Darwinian Theory of Evolution was a scientific work on biological evolution written by the British biologist Charles Darwin and published in 1859. This book was a follow-up to Charles Darwin's Origin of Species. It explained the basic principles of biological evolution, including the concepts of natural selection, survival of the fittest, and genetic variation. It is one of the foundations of modern biology and has had a profound impact on the development of modern science and biology.
Biological Evolution Theory Tyrannosaurus Rex
The theory of biological evolution was a scientific theory that explained the variety and adaptability of organisms. As an extinct creature, the Tyrannosaurus Rex had a specific position in the process of biological evolution. Tyrannosaurus rex was a member of the dinosaur family, a large carnivore. From an evolutionary point of view, it evolved from the early reptiles. During the evolution of dinosaurs, Tyrannosaurus Rex adapted to the ecological environment at that time and developed a huge body, strong hind legs, and a mouth full of huge and long teeth. It had a high butt and a long tail. It was huge and majestic. It was at the top of the food chain in the terrestrial ecosystem and had a strong lethality. However, there are some speculations about the relationship between Tyrannosaurus Rex and modern life. For example, there was a theory that chickens might be descendants of Tyrannosaurus rex, based on the similarities in their appearance, such as their hind legs as the main force of action, and the protein molecular code obtained from Tyrannosaurus rex fossils was 80% similar to the protein molecular code of chickens (generally 50% can be determined as close relatives). However, more research later showed that chickens were not descendants of Tyrannosaurus rex. Chickens belonged to the category of birds and had a small size and brain capacity. On the other hand, the tyrannosaur belonged to the category of reptiles and had a large brain capacity and strong perception and reaction abilities. Furthermore, chickens had feathers and beaks and belonged to the category of birds. This did not conform to the biological evolutionary logic of the tyrannosaur. The two might have evolved from the same ancestor, and there was a large difference in the evolution process. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What does Darwin have to do with biological evolution?
Darwin proposed the theory of biological evolution. He believed that biological genes would randomly mutate during the transmission process, and some of the mutations would give the individual a certain survival advantage. Then, through natural selection, the individual with the survival advantage gene would be retained, and the creature would evolve. However, his theory was being questioned more and more because it was difficult to explain how complex biological structures (such as the human eye, brain, etc.) were formed through random mutation. Darwin's grandfather, Erasmus Darwin, was also one of the representatives of evolutionary thought. In Life, he proposed that every organism had an internal force that urged creatures to evolve into more advanced forms, which may have had a certain influence on Darwin. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Darwin's Theory of Biology
Charles Darwin (1809 - 1882) was a British biologist and the founder of the theory of evolution. During his journey, he witnessed many natural landscapes, visited primitive tribes, discovered fossils of animals and plants, investigated the growth and living conditions of animals and plants, and made detailed records to lay the foundation for subsequent research. He believed that any plant or animal was not fixed and had its own evolutionary law. In 1838, after reading Malthus's Theory of population, his idea of competition for survival began to take shape. However, he did not rush to publish this view, but spent a long time collecting materials to strengthen his views. He proposed the process of natural selection, believed that evolution could occur through this process, and supported his hypothesis with a large amount of convincing evidence. Although some people had proposed similar assumptions before him, his contribution was not only to propose a hypothesis, but also to provide a large amount of evidence to support it. His evolutionary theory was gradually accepted by the mainstream academic community. Although there were some arguments against Darwinian theory, these gimmicks were not recognized by the mainstream academic community. From a scientific perspective, Darwinian theory was valid. For example, Haeckel's embryonic recapitulation rate and the research results of the genetic theory in molecular biology proved the rationality of the theory of evolution from different aspects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A novel recommendation like "The Theory of Biological Evolution Online"
The content of Darwin's law of biological equilibrium
According to Darwin's theory, life started from a simple starting point. When the Earth operated according to the inherent law of gravity, it evolved into endless forms and continued to evolve. From the relevant theories, it could be understood that there was a balanced relationship between living beings and the environment. When the environment changed, if the living beings did not change, the balance would be broken. The living beings would adapt to the change and the universe would reach a new balance. The evolution, elimination, and inheritance of living beings were all in the process of the transformation between balance and imbalance. In this process, seeking for existence was the instinct of all things and the source of power for the system's balanced cycle. Balance was existence, balance was for existence, and seeking for existence was seeking balance. The breaking of the original balance represented the demise of old things (biological forms, etc.), and the formation of a new balance represented the birth of new things (new biological forms, etc.). The evolution process of living beings reflected the process of a living system from imbalance to equilibrium. However, it was not explicitly named as "Darwin's Law of Biological Balance." The above was an understanding based on the integration of Darwinian evolutionary ideas and concepts related to biological balance. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>