Similarities exist within different ecosystems. NSES Content Topic Population Growth Populations grow or decline through the combined effects of births and deaths, and in countries through emigration and immigration. Populations can reach the limits to growth. Carrying capacity is the maximum number of individuals that can be supported in a given environment. It is not availability of space, but the number of people in relation to resources and the capacity of Earth systems to support human beings.
Populations are dynamic with identifiable characteristics and measurable growth patterns.
All of the populations living together and the physical factors with which they interact compose an ecosystem. Populations interact to form a dynamic community of living organisms within the ecosystem. To understand ecological relationships among different populations within an ecosystem F2 To understand a community NSES Content Standard Life Science NSES Content Topic The Interdependence of Organisms Human beings live within the world's ecosystems. Increasingly, humans modify ecosystems as a result of population growth, technology, and consumption. Human destruction of habitats through direct harvesting, pollution, atmospheric changes, and other factors is threatening global stability, and if not addressed, ecosystems will be irreversibly damaged.