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It can absorb a lot of water in a short time for later use, it performs photosynthesis in a CAM way which saves a lot of water, it keeps stomata closed during the day and absorbs CO2 at the night
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cactus has spines instead of leaves which help o prevent water by transpiration.it also have long roots that can penetrate deeper in the soil and can absorb more water.
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instead of leaves it has spines,which it does'nt loose water by stomata in hot desert
good answer
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