According to evolutionary developmental psychologists, many evolved psychological mechanisms are that is, the mechanisms apply only to a specific aspect of a person's makeup.

They are domain-specific. It identifies with the test's capacity to accurately recognize patients without a condition. Consider the case of a therapeutic test for diagnosing a sickness. Specificity of a test is the extent of solid patients known not to have the malady, who will test negative for it.

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada