How do most desert cacti minimize water loss while taking in carbon dioxide for photosynthesis?
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Cacti use a special process called Crassulacean Acid Metabolism. By opening their pores at night when temperatures are cooler, they lose far less water to evaporation than typical plants do during the day. Photo: MANOJTV at English Wikipedia, Wikimedia Commons, CC BY-SA 3.0.
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Source: Wikipedia (CC BY-SA)
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