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How do fish allows gaseous exchange?

Updated: 8/21/2019
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8y ago

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Gills have numerous folds that give them a very large surface area.

The rows of gill filaments have many protrusions called gill lamellae. The folds are kept supported and moist by the water that is continually pumped through the mouth and over the gills.

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8y ago
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Q: How do fish allows gaseous exchange?
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