References/Resources

http://urbanext.illinois.edu/worms/facts/index.html

http://www.chs.helena.k12.mt.us/faculty/hbosch/biologytopics_files/webnotes/ch%2027/Ch%2027%20notes.htm

http://www.learner.org/jnorth/search/WormNotes3.html

http://www.sas.upenn.edu/~rlenet/Earthworms.html

http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html

http://www.mcwdn.org/Animals/Earthworms.html

http://www.naturewatch.ca/english/wormwatch/resources/anatomy.html