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Have you ever watched a fish breathe? When a fish breathes, the bony flaps, called the operculum,on the sides of its body move in and out as it moves oxygen from the water into its body. A fish also b ...
Breathe in, breathe out: all right, are you ready? In this experiment, you’ll see whether people or fish breathe more quickly, and if size affects breathing rate.Who has the higher breathing rate – fi ...