Biology, 19.11.2019 00:31 Thelazysandwich

What are the 4 primary functions of the respiratory system?
1) extchange of gas between atmosphere and blood
2) homeostatic regulation of body ph
3) protection from inhaled pathogens and irritating substances
4) vocalization

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What are the 4 primary functions of the respiratory system?
1) extchange of gas between atmos...