[transfer of energy and matter through various stages as a result of the feeding patterns of a series of organisms; food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant; plants, which convert solar energy to food by photosynthesis, are the primary food source. ( CSP )]
UMLS (CSP) C0596583 - Natural Phenomenon or Process
Relation/PAR: Ecology
Relation/CHD: food chain contamination