The primary role of the rabbit in this food chain is to be a source of energy.
The primary role of the rabbit in this food chain is to be a source of energy.
In a food chain, energy flows from one organism to another as organisms eat and are consumed by other organisms.
The rabbit, as a herbivore, consumes the carrots in the food chain and serves as a source of energy for the fox.
The energy stored in the rabbit's body is then transferred to the fox when it eats the rabbit.