Assertion: corpus luteum | /r/CapableOf | supplement in marsupial
Facets:
value: by endocrine secretions of the placenta
type: MANNER
Source sentences:
text: The corpus luteum continues to function during pregnancy, supplemented (in eutherian, or placental, mammals but not in marsupials) by endocrine secretions of the placenta (the organ through which contact between mother and fetus is maintained).