It is the sum of the grades of tenderness (0 = not tender, 1 = tender, 2 = tender and causes wince, and 3 = tender, causes wince and effort to withdraw) elicited by applying firm pressure over the joint margin of articular joints (shoulders, elbow, wrists, hips).t is the sum of the grades of tenderness (0 = not tender, 1 = tender, 2 = tender and causes wince, and 3 = tender, causes wince and effort to withdraw) elicited by applying firm pressure over the joint margin of articular joints (shoulders, elbow, wrists, hips).
ecosystem - a system formed by the interaction of a community of organisms with their physical environment. system, scheme - a group of independent but interrelated elements comprising a unified whole; a vast system of production and distribution and consumption keep the country going.
The CBD formulates the concept in the following definition: Ecosystem means a dynamic complex of plant, animal and micro-organism communities and their non-living environment interacting as a functional unit (Convention on the Biological Diversity, 1992).HE ECOSYSTEM CONCEPT There are many definitions for ecosystem. The definition of Christopherson (1997) seems quite workable, but so are quite a few others.