Seudónimo
Seudónimo
15-10-2019
Biology
contestada
Help me pls I need all work to be shown
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kavya68
kavya68
15-10-2019
photosynthetic organisms are the base of the food chain. they absorb CO2 and releases O2 as a waste product. Oxygen is essential to most life and we breathe it in every day.
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