Assertion: sponge's pore | /r/HasProperty | opening
Facets:
value: through cells
type: MANNER
Source sentences:
text: Most sponges feed on bacteria and organic matter by drawing water in through pores called ostia (singular: ostium), which are openings through which water enters the body.
text: The walls of these sponges are thin, lack canals, and are perforated by pores, which actually are openings through cells (porocytes).