Walmart assistant managers average $45,000 a year, which is right on target for the national average salary, according to Glassdoor salary data. If you factor in bonuses and additional compensation, the average pay increases to $48, 311 a year.
Natural selection can only work on existing variation within a population. Such variations arise by mutation, a change in some part of the genetic code for a trait. Mutations arise by chance and without foresight for the potential advantage or disadvantage of the mutation.
Natural selection is one of the processes of evolution. Natural selection is one of the mechanisms of evolution. Natural selection is the process in which individuals whom are better suited to their environment will have an increase fitness. For natural selection to occur, the following must be true: There must be variation in traits (every individual can't be identical)