give economic important of phylum annelida
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In addition to improving soil fertility, annelids serve humans as food and as bait. Scientists observe annelids to monitor the quality of marine and fresh water.
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In addition to improving soil fertility, annelids serve humans as food and as bait. Scientists observe annelids to monitor the quality of marine and fresh water.
They aerate the soil allow mositure to penetrate to plant roots. Their tunnels act as water storage, which is important when rain is scarce. Their castings (excrement) conditions and fertilizes the pastures/fields. They also recycle refuse on the surface layer of the soil.
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