Explain in a paragraph how the fish is able to move blood beyondits gills where

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These are my notes from my freshman biology class: -gills: greater surface area --> allows fish toobtain more oxygen and expel more CO2; this allows fishto be more active; gills allow for greater extraction efficiency(can remove more oxygen from water) -operculum: gill cover in fish; water pushed inand flows across gill openings (across primary and secondarylamellae) while blood flow moves back in the opposite direction -counter-current exchange: opposing blood andwater flows; allows for more efficient exchange between oxygen andCO2; maximizes opportunity for exchange **Counter current exchange seems to be your answer** Hope this helps you! Please rate :)

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