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__________ is a usable form of energy.
One molecule of glucose is recycled into ____________ molecules of carbon dioxide during cellular respiration.
Photosynthesis converts _______________ energy to _______________ energy to be used by organisms in the food chain.
The nitrogen cycle requires ______________ to convert nitrogen to nitrites and nitrates.
Energy flows in _____________ direction, and matter _______________ through the environment.
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1 year ago