8S-LS2a – patterns of cellular organization. This explains that all living things are made up of cells, cells are the basic unit of living things, and that cells show patterns of organization (cell, tissue, organ, organ system). This was adapted for use for students with special needs. The books includes 1 - 2 lines of easily read text, accompanied by large photos. This book goes together with worksheets that include similar photos for easy recognition for students with special needs.