what is earthworm ? what is the work of earthworm.
Answers
Answer:
Worms feed on plant debris (dead roots, leaves, grasses, manure) and soil. Their digestive system concentrates the organic and mineral constituents in the food they eat, so their casts are richer in available nutrients than the soil around them. Nitrogen in the casts is readily available to plants.
Explanation:
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Answer:
An earthworm is a terrestrial invertebrate that belongs to the order Opisthopora. They exhibit a tube-within-a-tube body plan, are externally segmented with corresponding internal segmentation, and usually have setae on all segments. ... Earthworms are commonly found in soil, eating a wide variety of organic matter.
Earthworms play an important role in breaking down dead organic matter in a process known as decomposition. ... This mixing improves the fertility of the soil by allowing the organic matter to be dispersed through the soil and the nutrients held in it to become available to bacteria, fungi and plants.