Scientifically, the term buffalo is incorrect for the North American species; its proper Latin name is Bison bison. However, common usage has made the term buffalo an acceptable synonym for the American bison. (from The American Buffalo in Transition, by J. Albert Rorabacher.).
Life cycle. Life cycle, in biology, the series of changes that the members of a species undergo as they pass from the beginning of a given developmental stage to the inception of that same developmental stage in a subsequent generation.
The Cell Cycle. The life span of a eukaryotic cell is called the cell cycle. A cell spends the bulk of the cell cycle in interphase. During interphase, the cell grows (G1), replicates its DNA through DNA synthesis (S) and grows again (G2) until it is ready to divide.