Herbivores only eat plants.
Herbivores feed on grasses and other vegetation in the desert.
The are herbivores eating grasses, sedges, shrubs and herbs
Reptiles do not eat just one kind of food. Some are herbivores, and some are carnivores.
Food is what animals eat - your question makes no sense. Herbivores eat plants for food Carnivores eat herbivores for food Omnivores snack on both.
The sun. The sun gives energy to the plants, and then the herbivores, then carnivores eat the herbivores or omnivore's eat herbivores
the plants are food to herbivores the carnivores eat the herbivores etc.
food
They are herbivores and do indeed need to eat a lot of food.
herbivores and omnivores
They are herbivores. Many of them eat grass.
Sloths are herbivores they don't eat meat.
Plants and grasses are what herbivores (herb eaters) eat.