Answer: ECOSYSTEM

AnswerCrossword Clue
ECOSYSTEMEnvironmental community
ECOSYSTEMEnvironmental group functioning as a unit
ECOSYSTEMCertain scientific niche
ECOSYSTEMEnvironmental concern
ECOSYSTEMEnvironmentalist's concern
ECOSYSTEMBiodiversity setting
ECOSYSTEMRain forest, e.g.
ecosystemall the organisms in a particular region and the environment in which they live
ecosystemA biological community of interacting organisms and their physical environment