The crocodile, which can remain under water without breathing for up to one hour, drowns its air-breathing prey and then dines at its leisure. an adaptation that aids the crocodile in doing so is that it can utilize virtually 100% of the oxygen in its blood, whereas humans, for example, can extract only approximately 65% of the oxygen in their blood. crocodile hb does not bind bpg. however, crocodile deoxy hb preferentially binds bicarbonate ions. how does this the crocodile remain under water for so long?
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The crocodile, which can remain under water without breathing for up to one hour, drowns its air-bre...
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