Homeostasis is a term that is used to both describe the survival of organisms in an ecosystem and to describe the survival of cells inside of an organism. Organisms and populations can maintain homeostasis in an environment when they have a steady level of births and deaths.
Competition is an example of interactions. When two organisms compete or fight for the same limited resource such as food, shelter, a mate, or sunlight, there is usually a winner and a loser, but if the competitors fight literally to the death and kill each other, the interaction has become negative for both. Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. Succession is a number of people or things sharing a specified characteristic and following one after the other. |
Carrying CapacityThe carrying capacity of an environment may vary for different species and may change over time due to a variety of factors, including: food availability, water supply, environmental conditions and living space.
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Impacts on ecosystemsThe majority of air pollution is the result of human activities. For example, increased fossil fuel combustion from motor vehicles, industrial factories and power plants all pump large quantities of air pollutants, such as carbon monoxide, ozone and nitrous oxides, into the atmosphere.
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Solutions to environmental problemsReduce Pollution :
reduce the amount of garbage we produce. Avoid cutting down trees : we can plant trees in agricultural areas or substitute wood for other materials. Outlaw the hunting of animals : if animals are in danger of extinction. Protect specific natural areas : they are important because of their natural resources. |