Question

give reason for the following
herbivores have longer small intestine than carnivores

Answer 1

because, the cellulose is difficult to digest, so herbivores require longer small intestine.
while small intestine of carnivores processes protein and eliminates quickly.

Answer 2

Herbivores eating grass need a longer small intestine to allow the cellulose to be digested. Whereas Meat is easier to digest, hence carnivores like tiger have shorter small intestine.