https://www.ck12.org/biology/annelid-ecology/lesson/Annelid-Ecology-Advanced-BIO-ADV/

Dec 11, 2015 ... As Charles Darwin pointed out well over 100 years ago, annelids are enormously important to the Earth's ecosystems. Without earthworms, it is ...

https://nhpbs.org/wild/annelida.asp

Burrowing annelids, like the earthworm, play an important role in helping organic matter decompose. Earthworms eat dead plants and animals. When they eat ...

https://www.sciencelearn.org.nz/resources/9-earthworms-role-in-the-ecosystem

Jun 12, 2012 ... It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly ...

https://en.wikipedia.org/wiki/Annelid

The annelids also known as the ringed worms or segmented worms, are a large phylum, with ..... Earthworms are also important prey for birds ranging in size from robins to storks, and for mammals ranging from shrews to badgers, and in some ...

https://ucmp.berkeley.edu/annelida/annelidalh.html

Annelids have radiated into a number of niches. Some are parasitic, notably the leeches and myzostomarians; others filter-feed or prey on other invertebrates.

https://www.reference.com/pets-animals/annelids-important-2ed335750ed479a0

Annelids, or segmented worms, are important because some of them aerate and enrich soil, which keeps it fertile. Medicinal leeches are annelids that are used ...

https://www.britannica.com/animal/annelid

Annelid: Annelid, any member of a phylum of invertebrate animals that are ... Polychaetes play an important role in turning over sediment on the ocean bottom.

https://education.seattlepi.com/importance-segmentation-biology-6749.html

Annelids contain largely segmented bodies with each segment containing elements of the different body systems essential for life, such as the nervous system.

http://tolweb.org/accessory/Characteristics_of_Annelida?acc_id=57

Annelids are all bilaterally symmetrical animals. They range in size from much less than 1 mm in length to more than 3 m. The smallest annelids described to ...

https://www.quora.com/How-economically-important-are-annelids

Earth worms are particularly important in agrarian economics. They aerate the soil allow mositure to penetrate to plant roots. Their tunnels act ...