Answer:
Secondary consumer
Step-by-step explanation:
The sequence of different organisms in which one is being eaten by others. This feeding relationship is called a food chain. Each food chain composed of producers and different levels of consumers. Each group of organisms in a food chain denotes a trophic level. The yellowfin tuna is a carnivore which feeds on squids, lobster and other small fish. These organisms are herbivores, and they feed on producer such as phytoplankton. Thus, squids, lobster and other small fish are primary consumers. Therefore, yellowfin tuna which feeding on squids, lobster and other small fish are a secondary consumer.