Why there is change in small intestine in animal

1.	Why there is change in small intestine in animal
Answer» Animal have a large size of small intestine because they directly take cellulose from grass and for the digestion of cellulose there is a change of small intestine in Animal Changing of small intestine size in animals depend upon which types food they eat.Because meat can digest eaily in short time while vegetables take more time for digesting than meat.i,e.humans have large sized intestine than forest animals.

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