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Rudik [331]
3 years ago
9

Help me asap plz and thx u

Health
2 answers:
AysviL [449]3 years ago
8 0
The answers are
11. B
12. D
13. C
Kipish [7]3 years ago
3 0
1) the cells use the oxygen 2) spinal cord 3) they would start coughing and have a shortness of breath.
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