The need to breathe so much is due to carbon dioxide build-up more than the need for oxygen. If there was a different way to get rid of carbon dioxide from the blood, we would only need to breathe at a rate of about once per minute.
The need to breathe so much is due to carbon dioxide build-up more than the need for oxygen. If there was a different way to get rid of carbon dioxide from the blood, we would only need to breathe at a rate of about once per minute.