With participation level at nearly a quarter of the population (22 percent), bowling rolled by such popular sports and activities as basketball (15 percent), golf (13 percent), aerobics (11.9 percent), baseball (13 percent) and yoga (9 percent) to secure the number one ranking.
Definition of FUEL CELL. : a device that continuously changes the chemical energy of a fuel (as hydrogen) and an oxidant directly into electrical energy.
Define stem cell: an unspecialized cell that gives rise to differentiated cells â stem cell in a sentence an unspecialized cell that gives rise to differentiated cellsâ¦ See the full definition