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 offers its store brand Reliabilt 10-Lite Steel French Patio Doors for about $325 for double doors 5'-6' wide; or $700 with built-in blinds. 2  Installation can double the cost, or about $600-$1,200 for labor and materials.