In the food web provided, secondary consumers are organisms that eat primary consumers. To identify the secondary consumers, we need to look for organisms that are one level higher in the food chain, feeding on the primary consumers.
1. Bobcat: The bobcat in this food web preys on the pine voles, which are primary consumers. Therefore, the bobcat is a secondary consumer.
2. Black bear: The black bear also preys on the pine voles, making it a secondary consumer as well.
Therefore, the bobcat and the black bear are the two secondary consumers in this food web. They both feed on primary consumers, which puts them at the secondary consumer level in the ecosystem's food chain.
