Some persons say that love can makes the world(O)A. Others of a less romantic and more practical turn of mind say that isnt love, (1). But the truth is that (2). that makes the world go round. Energy is the currency of the ecological system and life becomes positive only when food is converted (3)., which in turn is used to seek more food to grow, to reproduce and to survive. On this cycle all life depends. It is fairly well known that (4). survive from year to year by eating as much as they can during times of plenty, the summer and fall, storing the excess, usually (5).., and then using these reserves of fat to survive during the hard times in winter into energy. A. go round F. its money B. into waste G. wild animals C. when food is scarce H. it is energy D. it is necessary I. in the form of fat E. into energy