Why is the small intestine in herbivores longer than in carnivores?

(N/A) The digestion of cellulose,a complex carbohydrate found in plant cell walls,requires a longer duration to break down.
Herbivores,which primarily consume grass and plant-based materials,possess a longer small intestine to provide sufficient time and surface area for the complete digestion and absorption of cellulose.
In contrast,carnivores consume meat,which is primarily composed of proteins and fats. These nutrients are easier and faster to digest than cellulose,which is why carnivores have a shorter small intestine.