mechanism for evolution. nature helps select the strongest to survive.
Members of one species living, competing, and interbreeding together.
Random change/flucation in the frequency/number of alleles caused by factors of fitness. Happens in all populations.
where individuals at one end of a distribution curve have a higher fitness than those at the other end.
where individuals in the middle of a distribution curve have a higher fitness than those at the ends.
Natural selection type where individuals at both ends of a distribution curve have a higher fitness than those in the middle.
How many of one type of allele is present in a gene pool compared to other alleles.
an inheritable trait that has a bell shaped distribution curve for a population.an inheritable trait that is controled by two or more genes
traits gained or lost over time. not inherited. not a mechnism for evolution.
a change in the proportion of alleles in a population.occur due to genetic drift or natural selection.
a trait that enhances fitness from natural selection
large-scale evolutionary changes that take place over long periods of time
ability of an organism to survive and reproduce in its environment
no longer in existence
Genetic drift that occurs when a few individuals become isolated from a larger population, with the result that the new population's gene pool is not reflective of the original population.