Evolution- Process of Biological Change
Evolution is the process, through natural selection, that organisms are thought to have changed from earlier organisms into new and more complex forms over time. These evolutions suit their new environments and needs (Levine & Miller). The origins of this theory began with Charles Darwin. Darwin first explained that evolution occurred because of natural selection, or survival of the fittest. In which, the strongest and most fit organism survives and passes on his genes. This is natural selection, which results in more efficient organisms over time. For any scientific theory to be backed up, it must be supported by an abundance of evidence. Such evidence could be fossils, microevolution examples, viral evolution, bacterial resistance, and …show more content…
Microevolution shows, through tiny changes in living things, that adaptations take place in the environment. Examples are seen every day from viruses adapting, to bacteria becoming resistant to new antibiotics. Viral evolution takes place in a matter of years, as they adapt and change constantly to become more adept at the insertion of their genetic material into host cells. As for bacteria, their evolution becomes noticeable as they become more and more resistant to the new antibiotics being developed to kill them. When the new antibiotics wipe them out, sometimes a resistant bacteria cell will survive, and spread its immunity to the next generation. This is a result of an allele frequency change. For example, “This more recent population has a different allele frequency than the original population, as a result of selection for those bacteria that have a genetic makeup consistent with antibiotic resistance” (Evidence of evolution). The exact opposite of these kinds of evolutions would be macroevolution, which is evolution, or allele frequency change seen in a species over a long period of
Evolution is the process, through natural selection, that organisms are thought to have changed from earlier organisms into new and more complex forms over time. These evolutions suit their new environments and needs (Levine & Miller). The origins of this theory began with Charles Darwin. Darwin first explained that evolution occurred because of natural selection, or survival of the fittest. In which, the strongest and most fit organism survives and passes on his genes. This is natural selection, which results in more efficient organisms over time. For any scientific theory to be backed up, it must be supported by an abundance of evidence. Such evidence could be fossils, microevolution examples, viral evolution, bacterial resistance, and …show more content…
Microevolution shows, through tiny changes in living things, that adaptations take place in the environment. Examples are seen every day from viruses adapting, to bacteria becoming resistant to new antibiotics. Viral evolution takes place in a matter of years, as they adapt and change constantly to become more adept at the insertion of their genetic material into host cells. As for bacteria, their evolution becomes noticeable as they become more and more resistant to the new antibiotics being developed to kill them. When the new antibiotics wipe them out, sometimes a resistant bacteria cell will survive, and spread its immunity to the next generation. This is a result of an allele frequency change. For example, “This more recent population has a different allele frequency than the original population, as a result of selection for those bacteria that have a genetic makeup consistent with antibiotic resistance” (Evidence of evolution). The exact opposite of these kinds of evolutions would be macroevolution, which is evolution, or allele frequency change seen in a species over a long period of