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pickupchik [31]
4 years ago
7

WILL MARK BRAINLIEST

Biology
2 answers:
levacccp [35]4 years ago
6 0
I believe it is lungs. Gills are for underwater animals. A heart/bones has nothing to do with gas exchange. Hope this helped
DENIUS [597]4 years ago
6 0

Answer:

Probably lungs- gills are for water creatures, hollow bones dont have connection with the respiratory system, and chambered hearts also dont deal with the respiratory system

Explanation:

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