Some science facts👌

1. Pila has both gills for respiration in water and a pulmonary sac for respiration in air.

2. Small intestine Or ileum is longest part of alimentary canal. But it’s length varies in different animals and depends on the food they eat.

3. Small intestine is longest in herbivores Or grass eaters like cow and horses, because cellulose takes long for digestion.

4. It is comparatively short in carnivores ( Lion, Tiger, etc). because cellulose is not found in their food.

5. In omnivores like man, small intestine is long because we have evolved from herbivores but it is not as long as in grass-eating mammals.