Directions: Look at the food web and then answer the questions that follow: Ocean Food Web Multiple Choice Questions: Pick the best answer. 4. What is missing from the following food chain? Plankton Mussels Shark a. Starfish b. Algae c. Seaweed d. Large fish 2. Crabs eat seaweed, starfish and small fish because they are a. Producers b. Herbivores c. Omnivores d.Carnivores10 3. Sharks and starfish are both examples of what kind of consumer? a. Omnivores b. Herbivores c. Insectivores d. Carnivores 4. The small fish in the web are eaten by the crab because they are a. Predators b. Prey c. Producers d. Consumers.