Pre-adaptation may occur because a natural population carries a huge quantity of genetic variability. In diploid eukaryotes, this is a consequence of the system of sexual reproduction, where mutant alleles get partially shielded, for example, by the selective advantage of heterozygotes.daptation is the evolutionary process whereby an organism becomes better able to live in its habitat or habitats. 2. Adaptedness is the state of being adapted: the degree to which an organism is able to live and reproduce in a given set of habitats.
The average temperature in Whitehorse, Yt, Canada is slightly cold at -1 degrees Celsius (30.2 degrees Fahrenheit). Average monthly temperatures vary by 32.7 C (58.9F) which is a above moderate range. The mean daily temperature range/ variation is 10.4 C (18.7 F). July is the warmest month (mild) with a mean temperature of 14 degrees Celsius (57.2 degrees Fahrenheit).
Graph of average and extreme temperature ranges by day for Omaha, NE. Temperature The warmest month in Offutt Air Force Base, Omaha, Nebraska is July with an average high temperature of 87.5Â°F. The hottest day on record was July 21 1974 when the temperature hit 109.0Â°F. During January the overnight temperature drops to an average of 14.5Â°F with the lowest temperature of -23.8Â°F being recorded on January 4 2010.