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Chemoheterotrophs release co2 that is then used by

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Unformatted text preview: utotrophs These organic compounds provide nutrients for chemoheterotrophs. • • Chemoheterotrophs release CO2 that is then used by photoautotrophs Carbon is removed from the cycle when it is i i incorporated in CaCO3 and fossil fuels t di d f els • Photosynthesis and respiration • Collectively photosynthesis and Collectively, respiration control bioelemental cycling. Photosynthesis: 6CO2 + 12H2O Sunlight C6H12O6 + O2 + 6H2O + heat Respiration: C6H12O6 + 6O2 6CO2 + 6H2O + heat • Phytoplankton include single cells or organized colonies; the vast majority are very small (<10 μm): – Picoplankton: 0.2-2.0 μm – Nanoplankton: 2.0-20 μm – Microplankton: 20-200 μm The picoplanktonic photosynthetic cyanobacte...
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