question: Clams, oysters, and mussels eat plankton filtered from water. How would clams, oysters, and mussels most likely be affected if the amount of plankton in a large body of water was significantly reduced?
choices.text: They would increase in number. They would find a new food source. They would become prey to other animals. They would compete for a limited food source.
choices.label: A B C D