We do not realize the mechanisms of biological aging or the reasons for aging are the limits of the estimated averages life expectancy of people are very empirical. The forces of natural selection with age, as in natural populations, few people survive beyond the age of reproduction. In recognition of these ideas, some would suggest an antagonistic pleiotropy hypothesis that the genes of a disadvantage in a population is not necessary to the reproductive phase, after which take place occur at the population can get. The environment is hostile, and individuals compete for resources. (more…)
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