Worms

Research the role of worm in ecosystems. Worms Introduction http://www.professorshouse.com/your-home/gardening-plants/general-plants/articles/what-do-worms-eat/ https://www.learner.org/jnorth/search/WormNotes3.html http://deq.louisiana.gov/portal/Portals/0/assistance/educate/DYK-earthworms.pdf Can a worm live on an unbalanced diet of just bacteria? http://gardenofeaden.blogspot.com/2010/07/how-and-what-do-worms-eat.html

More: http://www.wbu.com/education/robins.html http://wsu-nature.org/2012/01/29/are-worms-natural-the-global-worming-debate/

Soil: http://www.soils4teachers.org/biology-life-soil http://pnwboces.schoolwires.net/cms/lib03/NY24000991/Centricity/Domain/10/the%20role%20of%20soil%20nemotodes%20and%20protozoa%20%20OSU%20fact%20sheet.pdf http://extension.oregonstate.edu/gardening/secret-life-soil-0 http://www.researchgate.net/publication/233593184_Acromoldavicus_mojavicus_n._sp._(Nematoda_Cephaloboidea)_from_the_Mojave_Desert_California "However, Acromoldavicus was the genus that was relatively more abundant in interspace soils than near plant stems. Acromoldavicus mojavicus, the main and perhaps only species of this genus in western US, is common in many cool deserts (Baldwin et al. 2001) and is known to tolerate desiccation by entering a dormant state called anhydrobiosis

Nematodes

http://www.wormbook.org/chapters/www_nematodeisolation/nematodeisolation.html http://www.sciencebuddies.org/science-fair-projects/project_ideas/Zoo_p045.shtml