What is natural selection? How does it relate to mutations, genotypes and phenotypes? What is an exaptation?
Natural selection is the process of which organisms better adapted to their environment survive to reproduce. It does not affect the rate of mutations that occur, nor does it affect genotype because that is already fixed. Phenotype can be affected because you must be able to adapt to your environment.
An exaptation is the use of a biological structure or function for a purposed in which it was not intended for.
References:
http://www.google.com/search?q=what+is+an+exatation&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a#hl=en&client=firefox-a&hs=Xhc&rls=org.mozilla:en-US:official&q=exaptation&tbs=dfn:1&tbo=u&sa=X&ei=kxxQT6eYAYiliQLjiuW0Bg&sqi=2&ved=0CCEQkQ4&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=9d2590dd2d0e3399&biw=1200&bih=638
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