A Sponge Actually Feeds by

Multiple Choice

A sponge actually feeds by

A) actively capturing their prey with stinging cells.
B) drawing water in and out through the osculum.
C) producing water currents that flow through the pores into the central cavity and out through the osculum.
D) producing water currents that flow through the osculum into the pores and out through the central cavity.
E) photosynthesis.