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Novosadov [1.4K]
3 years ago
6

Explain why the respiratory surface has to be thin​

Biology
1 answer:
Mrrafil [7]3 years ago
5 0
To facilitate that exchange of oxygen and CO2 molecules.
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It is A

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The correct choice from given option is <span>"B", "Lactobacillus"</span><span>
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