BALANCE
OF NATURE
In
ecology, the idea that there is an inherent equilibrium in most ecosystems,
with plants
and animals interacting so as to produce a stable, continuing system of life on
Earth. The activities of human beings can, and frequently do, disrupt the
balance of nature. Organisms in the ecosystem are adapted to each other – for example,
waste products produced by one species are used by another and resources used
by some are replenished by others; the oxygen needed by animals is produced by
plants while the waste product of animal respiration, carbon dioxide, is used
by plants as a raw material in photosynthesis. The nitrogen cycle, the water
cycle, and the control of animal populations by natural predators are other
examples.
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