Significance. The calories in two sausage links vary due to the types of meat used. In a two link serving there are 133 calories for brown and serve sausage, 87 calories for brown and serve lite maple sausage, 113 calories for fresh pork sausage and 80 calories for precooked turkey sausage, according to Fat Secret.
Industrial ecology. Industrial ecology (IE) is the study of material and energy flows through industrial systems. The global industrial economy can be modelled as a network of industrial processes that extract resources from the Earth and transform those resources into commodities which can be bought and sold to meet the needs of humanity.
1 : a branch of science concerned with the interrelationship of organisms and their environments. 2 : the totality or pattern of relations between organisms and their environment. 3 : human ecology. 4 : environment, climate the moral ecology; also : an often delicate or intricate system or complex the ecology of language.