(a) Why is small intestine in herbivores longer than in carnivores ? (b) What will happen if mucus is not secreted by the gastric glands ? (c) What causes movement of food inside the alimentary canal ?

(a) Why is small intestine in herbivores longer than in carnivores ? (

1.	(a) Why is small intestine in herbivores longer than in carnivores ? (b) What will happen if mucus is not secreted by the gastric glands ? (c) What causes movement of food inside the alimentary canal ?
Answer» (a) Why is small intestine in herbivores longer than in carnivores ? (b) What will happen if mucus is not secreted by the gastric glands ? (c) What causes movement of food inside the alimentary canal ?