Fitness (biology) Fitness (often denoted w {\displaystyle w} or Ï in population genetics models) is the quantitative representation of natural and sexual selection within evolutionary biology. It can be defined either with respect to a genotype or to a phenotype in a given environment.
Lowes garage doors installation costs range from as low as $199 to $599 depending on the size of the door and where the door is being installed. Obviously installing an oversize garage door will require more skill and time.
1 For example, Lowe's store brand ReliaBilt 36 Wide 6-Panel Steel Door costs about $107-$120 while its Benchmark by Therma-Tru 33.5. 2  White Entry Door costs about $170. 3  With installation, labor and materials for a basic front door can total $200-$700.