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Unformatted text preview: I feel that adaptation is the cause of salamanders being limbless. Adaptation is an evolutionary modification that improves a species chance of survival and reproductive success in a given environment. Since the environment changes, the salamanders have to adapt according to their environment. Eventually the accumulation of adaptive modifications might result in a new species. We have to also think of evolution which occurs through the process of natural selection. Natural selection is when successful traits are passed on from generation to generation and traits that are not successful are not passed on. It also consists of four premises, overproduction, variation, limits on population growth, and differential reproductive success. In this case the limbs may not have been a successful trait for the salamanders....
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This note was uploaded on 07/30/2010 for the course PSY 220 taught by Professor Lind during the Fall '10 term at University of Phoenix.
- Fall '10