Medescribe how respiratory system exchanges carbon dioxide and oxygen in the lungs. include the words carbon dioxide lungs trachea and bronchi in your answer

It might be easier just to google it

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It doesn't state that he washed his hands before or after preparing this poultry. even though he had it in seperate bags the bacteria from the poultry could have entered the vegtables because of a lack of handwashing. so cross-contamination is a very possible answer.