Question

how do poriferans obtain their food?
suspension feeding
photosynthesis
predation

Explanation:

Poriferans, or sponges, are filter - feeders. They draw in water through ostia, filter out food particles like bacteria and plankton from the water in the spongocoel, which is a form of suspension feeding. They do not perform photosynthesis as they lack the necessary structures, and they are not predators.

Answer:

suspension feeding