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Carbon
carbon
They are recycled :)
Nutrients are recycled in ecosystems, but not in organisms.
Nitrogen.
energy
Recycled or Replaced.
because it has mercury that can harm living organisms
If the a biotic matter in the environment was not recycled the world would end
Carbon, Oxygen and Nitrogen
This element is oxygen.
Humans are NOT one or single celled organisms. They are made up of millions and billions of cells which are recycled every minute.