Kellbell42 Kellbell42
  • 20-04-2017
  • Biology
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Gas exchange takes place in the

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ItsKDelacruz
ItsKDelacruz ItsKDelacruz
  • 20-04-2017
gas exchangeis the delivery of oxygen, so im guessing it  takes place in the bloodstream
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nadiazindani01
nadiazindani01 nadiazindani01
  • 21-04-2017
Lungs for human and gills for aquatic animals
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