Assertion: sponge's system | /r/HasProperty | circulatory
Facets:
Source sentences:
text: Sea sponges lack distinct digestive, circulatory, excretory and respiratory systems.
text: Sponges are primitive multicellular animals that have no digestive system, no circulatory system, and no nervous system.
text: An interesting point to note about sponges is that they don’t have a well-developed digestive system, circulatory system or nervous system.
text: Sponges are primitive multi-cellular animals that have no digestive system, no circulatory system, and no nervous system.