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.
A system is a set of interconnected processes that depend on each other for their function. An ecosystem is a particular interconnected zone where life exists. It includes the air, the water, the soil, the animals, the plants, and the bacteria in that zone. The space an ecosystem takes up depends on how a person defines it.