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OpenStudy (anonymous):
No system is completely closed off from its surroundings, but some systems are almost completely closed. Which represents a system that is almost completely closed? A. the bird exhibit at the zoo B. a tropical fish aquarium C. the tropical rainforest exhibit at the botanical gardens D. the African Safari Park I think B @Love_Ranaa
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OpenStudy (love_ranaa):
Yeah B
OpenStudy (anonymous):
Thanks
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