What Are the Seven Organ Systems of the Earthworm?
Earthworms image by Ana Dudnic from Fotolia.com jQuery(document).ready(function(){ jQuery(‘#jsArticleStep1 span.image a:first’).attr(‘href’,’http://i.ehow.co.uk/images/a06/fc/4l/seven-organ-systems-earthworm_-1.1-800X800.jpg’); }); Earthworms condition and prepare soil through a natural composting process. Earthworms belong to the phylum Annelidae along with leeches and marine worms. Earthworms are segmented. Many of the segments containing duplicate structures or features, while others are differentiated and specialized. According to the “New World Encyclopedia,” earthworms are integral to agriculture and soil fertility throughout the world, as they compost, aerate, and mix the soil in which they live. Muscular System The earthworm muscular system is well-developed, according to J.P. Martin at the University of Florida Extension. It includes muscle tissue that runs the length of the body as well as other fibers that circle the body. Muscle tissue is attached to setae, bristles that al
