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Essential nutrients that must continually cycle through ecosystems.

A) Trophic levels
B) Energy pyramids
C) Biogeochemical cycles
D) Food chains

1 Answer

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Final answer:

Essential nutrients cycle through ecosystems via biogeochemical cycles, which are vital for ecosystem sustainability and involve both biotic and abiotic components.

Step-by-step explanation:

These cycles, such as the water, carbon, and nitrogen cycles, are crucial for the sustainability of natural terrestrial ecosystems. By involving both living (biotic) and non-living (abiotic) components of ecosystems, these cycles ensure that crucial elements are always available for organisms. The cycling of nutrients is a critical aspect of ecosystem health and function, and understanding these cycles is important in efforts to mitigate human impacts like pollution and climate change.

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