Answer to Question #159824 in Biology for avantae n mccoy

Question #159824

 A major point of understanding natural selection is that not all organisms in a population get to reproduce. Consider the term fitness as used in biology. How does this term relate to natural selection? 




1
Expert's answer
2021-02-01T11:21:11-0500

Fitness is the quantitative representation of natural and sexual selection and describes individual reproductive success. Fitness can be defined either with respect to a genotype or to a phenotype. Natural selection can cause a change in allele frequencies, with fitness-increasing alleles becoming more common in the population.


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