earthworms are invertebrates how it help them easy
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Earthworms have no lungs, and absorb oxygen directly through their skin. In order to do this, they must stay moist, and do so by lubricating their skin with glands along their bodies. Earthworms are invertebrates, lacking a skeleton. To support and shape the body, they are filled with coelomic fluid.
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Explanation:
Earthworms have no lungs, and absorb oxygen directly through their skin. In order to do this, they must stay moist, and do so by lubricating their skin with glands along their bodies. Earthworms are invertebrates, lacking a skeleton. To support and shape the body, they are filled with coelomic fluid.
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