Assertion: sunflower's root system | /r/CapableOf | evolve as efficient mechanisms
Facets:
value: extremely
type: DEGREE
value: for pulling nutrients
type: PURPOSE
Source sentences:
text: Like all land-based plants, flowers have root systems that evolved as extremely efficient mechanisms for pulling nutrients, water, and minerals out of the ground, among them: zinc, copper, and other radioactive elements that are then stored in their stems and leaves.