population equilibrium among organisms and their environments resulting from continuous interaction and interdependency.
the stable state in which natural communities of animals and plants exist, maintained by adaptation, competition, and other interactions between members of the communit ies and their nonliving environment
A concept in ecology that describes natural systems as being in a state of equilibrium, in which disturbing one element disturbs the entire system. The inference is usually drawn that the natural state of any system is the preferred state and that it is best to leave it undisturbed. Modern ecologists no longer believe that a balance of nature exists.
- Balance of power
a distribution and opposition of forces among nations such that no single nation is strong enough to assert its will or dominate all the others. noun the distribution of power among countries so that no one nation can seriously threaten the fundamental interests of another any similar distribution of power or influence A state of […]
- Balance of payments
the difference between a nation’s total payments to foreign countries, including movements of capital and gold, investments, tourist spending, etc., and its total receipts from foreign countries. noun the difference over a given time between total payments to foreign nations, arising from imports of goods and services and transfers abroad of capital, interest, grants, etc, […]
- Balance of trade
the difference between the values of exports and imports of a country, said to be favorable or unfavorable as exports are greater or less than imports. noun (economics) the difference in value between total exports and total imports of goods Also called visible balance Compare invisible balance That part of the balance of payments relating […]
- Balance pipe
noun (engineering) a pipe between two points used to equalize pressure