Answer:
oxygen is exchanged for a waste gas called carbon dioxide
Explanation:
Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled.
Your lungs and respiratory system automatically perform this vital process, called gas exchange.
Hope it helps :)
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Answers & Comments
Answer:
oxygen is exchanged for a waste gas called carbon dioxide
Explanation:
Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled.
Your lungs and respiratory system automatically perform this vital process, called gas exchange.
Hope it helps :)