Although the candidates are selected instead of elected, the process has to follow strict standards. 1. The candidates have to be always in the political system.
Mettle is defined as a high quality of personal character. 1  An example of mettle is a soldier's bravery.  An example of mettle is a person who has spirit and courage.
All of the methanogens are lithotrophs that can make their own energy only by methanogenesis, or the production of methane. They are found mostly in anaerobic freshwater environments, such as lake sediments and the digestive tracts of animals.