ellenrucks4427 ellenrucks4427
  • 25-06-2018
  • Biology
contestada

How are the respiratory and circulatory systems connected answers?

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zendemi
zendemi zendemi
  • 25-06-2018
what are your options, if you have any?

I know they both need each other in order to function, but I dont know if thats the answer needed, or if its more complicated than that..
hope I could help atleast a bit!
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lustlarrywrites
lustlarrywrites lustlarrywrites
  • 01-10-2018

They trade oxygen and carbon dioxide.

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