tsh9aybrian tsh9aybrian
  • 16-03-2017
  • Biology
contestada

What two features do all respiratory systems share?

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Аноним Аноним
  • 16-03-2017
I have a lot... But, I'll give two like you wanted.

1. They all need blood so that they can stay alive and keep you breathing

2. There's mucus somewhere around the lungs of all living things...

(brainliest maybe?)
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