Assertion: arachnid's organ | /r/CapableOf | call placenta
Facets:
Source sentences:
text: The developing fetus of a placental mammal receives nourishment from a special organ called a placenta while being carried in the mother’s womb.
text: While in the womb, the developing fetus receives nourishment from an organ called a placenta.
text: (Placental mammals give birth to live young, which, while growing inside the mother, were provided with oxygen and nutrients by an organ called a ‘placenta’.)