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The adaptations for the Barrel Cactus are ideal for their survival. Barrel Cacti have a unique metabolism that works for their lifestyle. Their metabolism lets the stomata remain closed in the daytime, which is when the most water would be lost. It then opens at night releasing the oxygen while absorbing the carbon dioxide that is normally saved as malate. The Barrel Cacti has a spine that doubles as a protective shield against its predators.

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  1. The A Barrel Cactus has shallow, extensive root system to quickly absorb rainfall.
  2. It has thick, waxy skin to reduce water loss through transpiration.
  3. The spines provide protection against herbivores and help to shade the plant from excessive sun exposure.
  4. Its spherical shape minimizes surface area exposed to the sun, reducing water loss.
  5. The A Barrel Cactus can store large amounts of water in its stem to survive long periods of drought.
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Q: What are 5 adaptations of A Barrel CActus?
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