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The displacement of a string is given by The wavelength of the wave is:
Community
A group of interacting living organisms sharing a populated environment, typically considered within a specific geographical area.
Ecosystem
An ecosystem consists of living entities and their inanimate environmental elements, working together as a unified system.
Biosphere
All regions of Earth where organisms live.
Population
A community of identical species inhabitants coexisting and mating in a particular region.
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