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.
Call Lowes or Sears - I had a new 50 gallon tank installed last year for less than $800. Personally, unless you know a contractor, I wouldn't go through some schmo - stick with Sears or Lowe's and you don't have to worry about any hidden costs, fees, or b.s.