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Darwin's "Theory of Evolution" says yes, but now there is another theory in the West that man evolved from dolphins. The more sci-fi claim is that humanity has gone through several times of destruction and reproduction, and that our ancestors were alien immigrants.
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From the most primitive organisms with no cell structure to prokaryotes with cellular structures, from prokaryotes to eukaryotic unicellular organisms, and then developed in different directions, the kingdom of fungi, plants, and animals emerged. The plant kingdom ranged from algae to gymnoferns to ferns, gymnosperms, and finally angiosperms. The animal kingdom evolved from primitive flagellates to multicellular animals, from primitive multicellular animals to the emergence of chordates, and then evolved into higher chordates vertebrates.
Fish in vertebrates evolved into amphibians and then reptiles, from which mammals and birds were differentiated, and one of the mammals further developed into a higher intelligent organism, which is man.
Overview. 1. DNA structure, the base is located in the center, and the outer side is surrounded by a double helix formed by phosphate and sugar. The inheritance of an organism occurs on some discontinuous traits, that is, specific characteristics of the organism.
In humans, for example, eye color is a trait that can be inherited from one of the parents. Hereditary traits are controlled by genes, and a complete set of genes in an organism's individual genome is called a genotype.
2. A complete set of observable traits that can form the structure or behavior of organisms, which is called phenotype. These traits arise from the interaction of genotype with the environment. Therefore, the phenotype of an organism is not entirely genetic, for example, the tanning of ** is determined by the genotype of the individual and the exposure to sunlight.
The reason why each person responds differently to sunlight is because of differences in genotype, the most notable example being individuals with albino traits, who do not tan and are fairly prone to sunburn.
3. Genes are regions of DNA molecules that contain genetic information, and DNA is a long-chain molecule containing four bases. Different genes have different base sequences that form genetic information in the form of encoding. The long strands of DNA in a cell aggregate with proteins to form a chromosome structure, a specific location on the chromosome called locus.
Sometimes the sequences on the locus vary from individual to individual, and these various variations are called alleles. Mutations can alter the gene sequence to create new alleles. When a mutation occurs, the newly formed allele may affect the trait controlled by this gene, altering the phenotype.
The theory of evolution says that there is no one who evolves, at most they are common ancestors, and they have chosen different evolutionary routes, but the kinship between monkeys and humans has been very far away, and now chimpanzees and humans are a little closer to the human family, and there are many theories about the extinction of other humans who are closest to the bloodline, we are the descendants of Homo sapiens, and the Peking ape man and the cave man have little to do with us, and these relatives have to be traced back to the time of evolution in Africa, let alone monkeys. >>>More
It evolved over the last 10,000 years of evolution.
Monkeys and our human ancestors are the same, but in the process of evolution, each other's environments are different, and eventually different evolutionary results are produced. Some of the ancestors evolved into monkeys, and some of the ancestors evolved into humans. Biologically, humans and monkeys are both primate higher mammals.
The landlord is lovely and has a lot to know, no matter how interesting the views are, and the hypothesis that man evolved from water is creative because humans do have some physiological phenomena that support such a view: >>>More
I don't think humans necessarily evolved from apes, because if we humans were to walk upright according to the theory of evolution, we humans would still be walking upright, but we humans are so intelligent now that it is contrary to the theory of evolution.