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Are cacti hollow?

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Most cacti are native to arid and semi-arid environments, and one of their most important survival strategies is to minimize their surface area to volume ratio in order to reduce water loss due to transpiration. Being hollow would be counterproductive in this respect. read more

No, a cactus isn't hollow inside. Instead, its thickened stem is filled with juicy, thick, water retaining flesh. Over 90% of a cactus plant's body parts are devoted to moving, processing, and storing nutrient solutions, photosynthetic products, and water. read more

Best Answer: The larvae of caterpillars or worms ate the inside of a cactus. Yes, they can spread. If any of the cactus are good, the rest can be cut off and the good part can be saved. The site below is a great site. read more

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Cactus (Family Cactaceae)
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