Final answer:
Around 10% of the grasshopper's energy will be transferred to the rabbit when it is eaten.
Step-by-step explanation:
When a rabbit eats a grasshopper, it gains some of the energy that the grasshopper had obtained from consuming the grass.
However, it's important to note that only about 10% of the energy from one step in a food chain is transferred to the next step.
This means that the rabbit will only retain about 10% of the energy that the grasshopper had originally obtained from the grass. The rest of the energy is used by the rabbit or released as heat.