Answer:
The correct answer would be A. Filter feeders – strain food from water.
Filter feeding is a type of food acquirement in which suspended food material and/or small organisms are strained randomly from the water. Â
It is accomplished by passing water through the specialized filtering structure.
Examples of filter feeder may include krill, clams, baleen whale, sponges, and many fishes. Few birds like a flamingo and some species of duck also practice filter feeding.
These organisms are considered as ecosystem engineers as they play a crucial role in cleaning water.
