Assertion: mollusk's system | /r/HasProperty | open
Facets:
value: mainly
type: DEGREE
value: depending on the species
type: OTHER
Source sentences:
text: Their circulatory system is open; that is, blood is pumped from the heart into large sinuses, where it supplies oxygen to the various tissues.
text: Mollusks have an open circulatory system in which the heart pumps blood into the open space around the body organs.
text: The circulatory system may be open or closed, depending on the species.
text: The main body cavity is a hemocoel through which blood circulates; as such, their circulatory systems are mainly open.