Assertion: earthworm | /r/CapableOf | produce amorphous calcium carbonate
Facets:
value: precisely
type: MANNER
value: in the calciferous gland
type: LOCATION
Source sentences:
text: Nevertheless, precisely why earthworms produce amorphous calcium carbonate in the calciferous gland has never been satisfactorily explained, although the activity of carbonic anhydrase has been found (Clark, 1957).