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Home Q & A Board Biology-Related Homework Help Biochemistry
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kekebab001 kekebab001
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6 years ago
Living things are _____
 a. a closed system
  b. an open system
  c. an isolated system
  d. none of these
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allyally
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6 years ago
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kekebab001 Author
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6 years ago
This site is awesome
zbmallo3
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Yesterday
Helped a lot
halyna
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2 hours ago
Thanks for your help!!
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