Final answer:
The secondary consumer in the given food chain is the owls.
Step-by-step explanation:
In a food chain, the primary consumer feeds directly on the producer, while the secondary consumer feeds on the primary consumer. In this case, the blueberry bushes are the producers, the mice are the primary consumers, and the owls are the secondary consumers. Finally, the bobcats are the tertiary consumers, as they are the top predators in this food chain.
Learn more about Food chain