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The moist skin of earthworms is used for gas exchange. Furthermore, their closed circulatory systems contain blood vessels close to the skin which allow for the exchange of O2/CO2.

Reference = Biology 191 laboratory manual

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12y ago
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11y ago

The epidermal layer has blood capillaries, which have looped out from the vascular system circulating the blood. These blood capillaries are so close to the skin that the gases can diffuse from the surroundings into and out of the blood through the skin and the capillary walls. The blood contains haemoglobin in solution which circulates the gases through the body.

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8y ago

No, earthworms do not have lungs. They breathe through their skin.

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15y ago

Earthworms have no respiratory system. Gas exchange occurs through their body surface.

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Q: Do earthworms have lungs
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