Multiple Choice
When submerged, frogs receive most of their O2 from capillaries within the skin. Which of the following structures would contain blood with the highest O2 concentration in a submerged frog that is not able to breathe using its lungs?
A) Right atrium
B) Left atrium
C) Aorta
D) Ventricle
E) Pulmonary vein
Correct Answer:

Verified
Correct Answer:
Verified
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