Biology, 08.04.2020 00:45 cdgood12

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

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A mammal uses only 1 to 2 percent of its energy in ventilation (breathing air in and out) while a fi...

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