Question

why do herbivores have longer, small intestine than Carnivores​

Answer 1

Digestion of cellulose takes a longer time, because the enzymes are produced by the ruminant bacteria that live in the gut of the herbivore. Longer small intestine ensures that the food stays for a longer duration and proper digestion is possible

Answer 2

herbivores eat plants which is made from silos of fibre and we know that cellulose and fibre are difficult to digest and it take time therefore they have longer where is small designs are present in carnivorous carnivorous animal meat eating animals and meat is easily digest therefore cannot require large intestine as compared to herbivores