up vote 3 down vote accepted. $\pi$ is the name of the constant relating the diameter and circumferance of a circle. It's a definition, a particular constant that we thought deserved a name. $e$ happens to be the name of a constant from a particular limit. Like $\pi$, we named it because we thought it would be useful. In Physics, many, many constants have names. Gravitational constants, expansional constants, electrical constants, etc. Each is useful, but somewhat arbitrarily chosen.
Bacteria: The Monera Kingdom Bacteria are classified into two groups: Eubacteria (true bacteria) and Archaebacteria (Ancient Bacteria). They are autotrophic. 28-1 Chapter 28: Microbiology. 28-2 Viruses Viruses are noncellular, nonliving particles and therefore are not included in the classification scheme.
(stÄf'ÉlÉkÅk`És) , any of the pathogenic bacteria bacteria[pl. of bacterium], microscopic unicellular prokaryotic organisms characterized by the lack of a membrane-bound nucleus and membrane-bound organelles.Once considered a part of the plant kingdom, bacteria were eventually placed in a separate kingdom, Monera......Click the link for more information. , parasitic to humans, that belong to the genus Staphylococcus.The spherical bacterial cells (cocci) typically occur in irregular clusters [Gr. staphyle =bunch of grapes]. The term staphylococcus is also sometimes used loosely for the cluster arrangement itself and, broadly, for any bacteria with such a growth pattern.nce considered a part of the plant kingdom, bacteria were eventually placed in a separate kingdom, Monera...... Click the link for more information. , parasitic to humans, that belong to the genus Staphylococcus.