By which animal 'spiracles' are used for breathing?
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Since insects don't have lungs, they use spiracles to exchange oxygen and carbon dioxide with the outside air. ... Whales use their blowholes to take in the air and dispel carbon dioxide when they surface. Whales have lungs like other mammals rather than gills like fish. They have to breathe air, not water.
ihassan9:
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insects like grasshoppers,spiders,scorpion
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