8 Bilder zum Thema "Gaseous Exchange" bei ClipDealer

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moray eel
moray eel
Alveoli and Red Blood Cells. Oxygen molecules attach to red blood cells, which travel back to the heart.
Sick man holding his chest in pain while coughing in the living room. Sore throat and cough, man with lung pain at home, health problems concept
Sick man holding his chest in pain while coughing in the living room. Sore throat and cough, man with lung pain at home, health problems concept
Industrial column.
human lungs trachea
Pulmonar alveoli

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