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Bacteria. Cyanobacteria. Single-celled protists. Plants-Mosses. Sphagnum or peat moss. Liverwort. Ferns. Horsetails. Gymnosperm. Angiosperm. C-3 photosynthesis works well as long as stomates remain open. C-4 photosynthesis keeps carbon dioxide concentration high so photorespiration
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C-3 photosynthesis works well as long as stomates remain open.
C-4 photosynthesis keeps carbon dioxide concentration high so photorespiration does not occur. Photorespiration when stomates Close produces a 2-C compound that cannot be used to make sugar.