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.
Some analysts think Loweâs can gain ground by capturing more of the $120 billion professional home-improvement market. The average pro contractor customer at Home Depot spends $6,500 a year, while Loweâs garners about $2,000 per pro.