Assertion: food chain's level | /r/MadeOf | producer
Facets:
value: usually
type: DEGREE
Source sentences:
text: The first trophic level or first organism in a food chain usually consists of producers called autotrophs.
text: The next trophic level above the producers consists of consumers.
text: The lowest level of an ecological pyramid consists of producers, the next higher level of first-order consumers, the next higher level of second-order consumers, and so on.