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For example, creationists often explain the development of resistance to antibiotic agents in bacteria, or the changes wrought in domesticated animals by artificial selection, by presuming that God decided to create organisms in fixed groups, called "kinds" or .Though natural microevolution or human-guided artificial selection can bring about different varieties within the originally created "dog-kind," or "cow-kind," or "bacteria-kind" (!Again these winning individuals are selected and copied over into the next generation with random changes, and the process repeats.

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These promising candidates are kept and allowed to reproduce.Multiple copies are made of them, but the copies are not perfect; random changes are introduced during the copying process.The CPARS applications are designed for UNCLASSIFIED use only.Classified information is not to be entered into these applications.The evolutionary postulate of common descent has aided the development of new medical drugs and techniques by giving researchers a good idea of which organisms they should experiment on to obtain results that are most likely to be relevant to humans.

Finally, the principle of selective breeding has been used to great effect by humans to create customized organisms unlike anything found in nature for their own benefit.CPARS hosts a suite of web-enabled applications that are used to document contractor and grantee performance information that is required by Federal Regulations.Federal Acquisition Regulation (FAR) Part 42 identifies requirements for documenting contractor performance evaluations for systems, non-systems, architect-engineer, and construction acquisitions.There are numerous natural phenomena for which evolution gives us a sound theoretical underpinning.To name just one, the observed development of resistance - to insecticides in crop pests, to antibiotics in bacteria, to chemotherapy in cancer cells, and to anti-retroviral drugs in viruses such as HIV - is a straightforward consequence of the laws of mutation and selection, and understanding these principles has helped us to craft strategies for dealing with these harmful organisms.These candidates may be solutions already known to work, with the aim of the GA being to improve them, but more often they are generated at random.