Assertion: sponge | /r/CapableOf | use the algae
Facets:
value: as a mechanism
type: MANNER
value: as a food source
type: PURPOSE
value: as a screen against sunlight
type: PURPOSE
value: as a source of oxygen
type: PURPOSE
Source sentences:
text: The sponge protects the algae from enemies, from unfavourable environmental conditions, and from their own metabolic waste products; the sponge uses the algae as a source of oxygen, as a mechanism for eliminating its products of metabolism, as a screen against sunlight, and as a food source (consuming both algal waste products and dying algae).