Ascites refers to abnormal accumulation fluid in the abdominal (peritoneal) cavity. The most common cause of ascites is cirrhosis of the liver. Treatment of ascites depends on its underlying cause.
Ecosystem. A functional system that includes an ecological community of organisms together with the physical environment, interacting as a unit. Ecosystems are characterized by flow of energy through food webs, production and degradation of organic matter, and transformation and cycling of nutrient elements.
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.