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.
In some fish, e.g., the eel, a single fin extends from the back, around the tail, and along the ventral surface. In the majority of fishes, however, there are one, two, or three dorsal fins, a distinct tail fin, and an anal fin. These are called median, or unpaired, fins.In addition to these unpaired fins, most fish also have paired fins.he tail is an important organ of locomotion and the paired fins are used for steering, checking speed, balancing, and for slow movements. An adipose fin (fatty tissue without support) is found behind the dorsal fin in some fish, e.g., the salmon and the catfish. See climbing perch; flying fish. Cite this article.