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QUESTION
A mammal uses only 1-2% of its energy in ventilation (breathing air in and out) while a fish must spend about 15% of its energy to move water over...
A mammal uses only 1-2% of its energy in ventilation (breathing air in and out) while a fish must spend about 15% of its energy to move water over its gills. Explain this huge difference in their efforts to collect oxygen
