The Porocytes of Ascon Sponges Lead to the Outside Via

Question

The porocytes of ascon sponges lead to the outside via openings called
A)spongocoels.
B)atriopores.
C)blastopores.
D)oscula.
E)ostia.

Accepted Answer

Porocytes are tubular cells in ascon sponges that form channels leading directly to the outside of the sponge. These channels are called ostia, which are the small openings on the sponge's surface through which water enters.