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  • 03-11-2016
  • Biology
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Oxygen constantly diffuses from air or water into an animal's bloodstream for this to happen the concentration of oxygen in the blood must be

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Аноним Аноним
  • 03-11-2016
The concentration of oxygen must be lower in the blood since diffusion is a form of passive transport, which goes down the concentration gradient (high to low.) Hope this helps! :)
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