Annual growth in total Medicare spending averaged 4.1% between 2010 and 2014, compared to 9.0% between 2000 and 2010, based on data from OACT, despite growth in the number of beneficiaries and increases in health care costs over these years (Figure 3) .
bowfin - primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America. Amia calva, dogfish, grindle. ganoid, ganoid fish - primitive fishes having thick bony scales with a shiny covering. Amia, genus Amia - type genus of the Amiidae.
A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fish, cetaceans (whales, dolphins, and porpoises), and the (extinct) ichthyosaurs.Depending on the species, an animal may have one or two of them.ome species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin) for propulsion. In anglerfish, the anterior of the dorsal fin is modified into a biological equivalent to a fishing pole and a lure known as illicium or esca.