Meaning & History. Derived from Latin leo meaning lion, a cognate of LEON. It was popular among early Christians and was the name of 13 popes, including Saint Leo the Great who asserted the dominance of the Roman bishops (the popes) over all others in the 5th century. It was also borne by six Byzantine emperors and five Armenian kings.
Yeast is a good example of an organism that undergoes alcoholic fermentation. The same process that goes on in the mitochondria during lactic acid fermentation also happens in alcoholic fermentation. The only difference is that the byproduct of alcoholic fermentation is ethyl alcohol.
Simple organisms may be unicellular, consisting of just one cell, while more complex organisms are multicellular. There are two types of cell division.Mitosis is used for growth and repair and produces diploid cells identical to each other and the parent cell.ulticellular organisms need specialised organ systems, whereas all the life processes in a unicellular organism take place in that one cell. Multicellular organisms need organ systems to carry out functions such as: