Final answer:
A food chain is a representation of the transfer of energy between organisms in an ecosystem. The hawk is a secondary consumer in a food chain, meaning it feeds on primary consumers. An example of a food chain with a hawk as a secondary consumer is grass (producer) --> rabbit (primary consumer) --> hawk (secondary consumer).
Step-by-step explanation:
A food chain is a way of showing the transfer of energy between organisms in an ecosystem. In a food chain, organisms are classified into different trophic levels. The hawk being a secondary consumer means it is a carnivore that feeds on primary consumers, which are herbivores. An example of a food chain in which the hawk is a secondary consumer is grass (producer) --> rabbit (primary consumer) --> hawk (secondary consumer).
Learn more about Food chains