What is the definition of evolution in biology

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What is the Definition of Evolution in Biology?

Evolution is a fundamental concept in biology that refers to changes in the genetic composition of a population over time. It is the process by which different kinds of living organisms have developed and diversified from earlier forms during the history of the earth.

Theory of Evolution

The theory of evolution is the scientific explanation for the diversity of life on earth. It states that all living organisms have descended from a common ancestor, and that the process of natural selection has favored those organisms that are best adapted to their environment. This process has resulted in the gradual development of new species over time.

Evidence for Evolution

There is a wealth of evidence to support the theory of evolution, including fossil records, genetic data, and observations of the diversity of life on earth. Fossil records show that species have changed over time, and genetic data indicates that all living organisms share a common ancestor. Observations of the diversity of life on earth demonstrate that organisms are adapted to their environment and that new species can arise over time.

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Evolution and Natural Selection

The process of evolution is driven by natural selection, which is the process by which organisms that are better adapted to their environment survive and reproduce more successfully than those that are not. This process leads to the gradual accumulation of favorable traits in a population over time, resulting in the development of new species.

Evolution and Genetics

Evolution is also driven by genetic changes, which are changes in the genetic composition of a population over time. These changes can be caused by mutations, which are random changes in the genetic code, or by the process of natural selection. The combination of genetic changes and natural selection leads to the development of new species over time.

Conclusion

Evolution is a fundamental concept in biology that refers to changes in the genetic composition of a population over time. It is the process by which different kinds of living organisms have developed and diversified from earlier forms during the history of the earth. The process of evolution is driven by natural selection and genetic changes, which lead to the development of new species over time.

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