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.
ecosystem [(ee-koh-sis-tuhm, ek-oh-sis-tuhm)] A collection of living things and the environment in which they live. For example, a prairie ecosystem includes coyotes, the rabbits on which they feed, and the grasses that feed the rabbits.