A. Lungs
B. Gills
C. Pharyngeal slits
D. Trachea
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The correct answer to the question: "In Acron worms respiratory gases are exchanged at__________?" is "Pharyngeal slits".
A. Lungs
B. Gills
C. Pharyngeal slits
D. Trachea
The correct answer to the question: "In Acron worms respiratory gases are exchanged at__________?" is "Pharyngeal slits".
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