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The act of worms eating and excreting has been going on for centuries, and it has been used to help make compost for nearly as long. When worms digest organic material and leave casings behind, the casings are rich in a variety of nutrients needed for healthy plant growth. Nitrogen, magnesium, phosphorous, carbon, calcium and potassium are all present in worm casings in significant amounts, which makes casings a prime source of nutrition for plants in the nearby area.

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6y ago
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9y ago

Arthropods can excrete bodily waste through different ways. Arthropods such as crustaceans excrete waste through green glands. Insects excrete their liquid waste through malpighian tubules.

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11y ago

Yes Roundworms do have an excretory in which waste and fecal matter leave the body through the anus.

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15y ago

Same way humans do. Same way humans do.

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12y ago

yes.

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Q: Do roundworms have a excretory system?
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