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並前往https://www.pressconnects.com/story/news/local/2017/12/08/ask-scientist-why-does-cactus-have-needles/935726001/

Ask a Scientist: Why does a cactus have needles?

So all in all, spines are adaptations that protect and help cacti hide from animals that may want to eat them. They also provide shade for the ...

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