Assertion: food chain's energy | /r/HasProperty | necessary
Facets:
value: by living things
type: MANNER
Source sentences:
text: Energy is necessary for the biotic world to grow and sustain.
text: Energy is needed by living things to grow and healthy.
text: Energy is necessary for living beings to grow.
text: The animal takes its necessary energy for survival from its food.
text: The animal takes its necessary energy for survival from its food.
text: An energy pyramid illustrates how much energy is needed as it flows upward to support the next trophic level.