A species is considered to be the breeding group for an organism. The replacement level is defined as a TFR that corresponds to a population exactly replacing itself. The unrestricted growth of a population is sometimes referred to as its biotic potential. The sum of the limiting factors serve to control the numbers of a species that can survive in defined area over time and this represents the carrying capacity of that area for a particular species. The unrestricted growth of populations resulting in the maximum number of organism for a particular population is called its biotic potential.
Humans have the k-strategy as reproductive strategy.
A megacity is defined as having a population of more than 1 million. The urban centers have less violence than the rural area. Education and employment are tools to make women more powerful and stabilize human population. China was the first country to introduce family planning. The one child policy is enforced in China.