Assertion: food chain | /r/MadeOf | producer
Facets:
value: usually
type: DEGREE
value: at
type: DEGREE
Source sentences:
text: All food chains consist of a producer which is first, a consumer which is second, a prey which is third and a preditor which is last.[citation needed]
text: Most food chains consist of at least producers and primary consumers.
text: They usually consist of a producer, a consumer and a predator, with the predator being the top of the food chain.
text: A food chain usually consists of producers, various levels of consumers and decomposers.