What happens when previous adaptations are no longer suitable for changes in the environment?

When previous adaptations are no onger suitable for changes in a particular enviroment, extinction set in. An adaptation is a trait that helps an organism to survive and to be suitable for its enviroment. When this adaptations are no longer relevant the organism dies out.

Models are used to simulate reality and make predictions. The major limitation of models is that they are 'idealizations' or 'simplification' of reality and thus cannot possibly replace reality. A number of assumptions are made during modeling and this causes differences between model and reality.

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