in the food chain process herbivores have the role of primary consumer which eats producers for food & green plants are a kind of producer ->  in the food chain an herbivore eats plants  many animals are herbivores & in the food chain process an animal has the role of consumer which eats producers / other animals for food ->  in the food chain an animal with the role of consumer may eat herbivores  in the food chain an animal with the role of consumer may eat herbivores & living things eat their food source ->  in the food chain herbivores are a source of food for some animals  in the food chain an herbivore eats plants & in the food chain herbivores are a source of food for some animals -> in the food chain herbivores eat plants and are a source of food for some animals