Yes, it lacks a circulatory system. It diffuses oxygen directly into its cells and diffuses carbon dioxide back out. That mechanism is why planarians need to keep their skin m â¦ oist. On land, planarians secrete a thin layer of mucus to make diffusion easier.
Diamond Bar is a city in eastern Los Angeles County, California, United States. The population was 55,544 at the 2010 census, down from 56,287 at the 2000 census. It is named after the diamond over a bar branding iron registered in 1918 by ranch owner Frederick E. Lewis.
Diamond is a city in Newton County, Missouri, United States near Joplin, Missouri. The population was 902 at the 2010 census. It is part of the Joplin, Missouri, Metropolitan Statistical Area.Diamond is primarily renowned as the birthplace of George Washington Carver.hen a post office was acquired in 1883, Frank Whitwell renamed the town Diamond. The first post office in the woodworking room at the back of the blacksmith shop. A number of events helped to establish the town of Diamond.