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.
Apart from the tail or caudal fin, fins have no direct connection with the spine and are supported by muscles only. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes, such as moving forward, turning, keeping an upright position or stopping.Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. fish can have up to three dorsal fins. The dorsal fins serve to protect the fish against rolling, and assist it in sudden turns and stops. 1  In anglerfish, the anterior of the dorsal fin is modified into an illicium and esca, a biological equivalent to a fishing rod and lure.