A large image of an earthworm, with a cut-a-way section, showing external anatomy and internal systems which include: the digestive, nervous and respiratory systems. In addition there is a close up of the Reproductive System and a labeled Cross Section. Designed to highlight the main points of basic cellular biology and zoology topics. Approachable, bright illustrations invite students to explore the topics without being overwhelming to beginners. Perfect for reference in the biology lab. 18" x 23". Flexible lamination, with metal grommets.