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Marine crabs breathe underwater using gills, which are located in a two cavities under the carapace. True land crabs have enlarged, modified cavities that act like lungs so that the land crabs can breathe air

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11y ago
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15y ago

spiracles are the respiratory structure of crab

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12y ago

Yes, they are gills.

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10y ago

by antennary gland

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11y ago

Book gills

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