Identification of Filter Feeders

Oysters are classic examples of filter feeders. They strain suspended matter and food particles from water by pumping it through their gills. Catfish are bottom-feeding predators or scavengers , octopuses are active predatory mollusks , and pelicans are fish-eating birds that scoop prey using their large throat pouches. > Filter feeders play a critical role in marine ecosystems by straining organic nutrients directly from the water column. Answer: (c).