Weegy: The exchange of carbon dioxide and oxygen takes place in the lungs. The specific site of gas exchange is the ALVEOLI.
User: Which statement best describes bacteria?
Bacteria are single celled prokaryotic organisms that can be helpful or harmful.
Bacteria were discovered in 1945 and were widely known to cause illness.
In the 1950s when penicillin was discovered, it was widely used to kill bacterial infections.
Bacteria are multicellular eukaryotic organisms, which make you sick.
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