Respuesta :

Answer:

-Ecosystems are the foundation of the 'Biosphere' and maintain the natural balance of the earth. 

-An ecosystem is an ecological community comprised of biological, physical, and chemical components, considered as a unit.

Explanation:

Answer:An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue

Explanation:

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