Review the discussion of swim bladders on pages 450-51 (2nd or 480 (3r), particu

Question

Review the discussion of swim bladders on pages 450-51 (2nd or 480 (3r), particularly in the physoclist fish. (Select all of the correct answers for this question.) Which of the following contributes to the increase the PO2 in the gas gland in physoclist fish? O a. the countercurrent exchange between the arterial and venous blood in the capillaries b the low numbers of mitochondria in the cells of the gas gland, resulting in glycolysis dominating oxidative phosphorylation low pH in the gas gland 1 Od gas gland cells adding ions to the blood eopening of the valve that can close the oval

Explanation / Answer

1) a. counter current exchange between arterial and venous blood

2) c. low ph in the gas gland

3) higher myoglobi, smaller lungs,

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