When the walls of the excavations are to be kept vertical and in order to protect the safety of. workmen, the general public, this or other work or structures, or excavation walls, or pipe. installation including ma terials encountered in the excavation which have a tendency to slough.
Hierarchy of Living Things. Biological organization, or the hierarchy of life, is the hierarchy of complex biological structures and system that define life using a reductionistic approach. The traditional hierarchy, as detailed below, extends from atoms (or lower) to biospheres.
DEFINITION of 'Corporate Hierarchy' Corporate hierarchy is the arrangement of individuals within a corporation according to power, status and job function. It is a form of organization structure that delineates authority and responsibility, designating who has supervisory leadership over employees, departments, divisions, and other executives dependent on their place within the strata.