What do mussels eat?\nOptions:\n- (A) bivalves\n- (B) sub-units of species\n- (C) Something coming from a gland\n- (D) mussels\n- (E) plankton and nonliving organic\n- (F) Something made from fermented ricce\n- (G) mollusks\n- (H) Microscopic organisms
A step-by-step solution is:
(E)
Bivalves feed on plankton and nonliving organic matter.

Mussels are bivalve mollusks.

Mussels eat plankton and nonliving organic matter.

.

The answer: (E)