At any given point along the length of the gill lamella, how does the pO2 of the blood flowing through the blood vessels in the
lamella compare to the pO2of the water flowing over the gill lamella? a. the pO2 of the blood never exceeds 50 percent of the pO2 of the water.
b. the pO2 of the blood is variable and cannot be compared to the pO2 of the water.
c. the partial pressure of oxygen in the blood is equal to the pO2 of the water.
d. the pO2 of the blood is higher than the pO2 of the water.
e. the pO2 of the blood is lower than the pO2 of the water.
