gizzard where it is digested
on the surface worms eat a variety of organic materials such as dead grass and leaves
The Anus
because it helps their digestive system
What goes in must come out. Digested decay matter and food. Good Fertilizer.
betel
Betel leaves(Piper betle)are widely used as a digestive stimulant in Southeast Asia.In some places,Areca nuts are used with betel leaves.
Koalas have a really long and complicated digestive system because they only eat Leaves( Eucalyptus Leaves mainly), and these leaves contain toxins which allows their digestive system to take a longer amount of time to break down the food and digest.
Koalas have a system that helps them digest the eculeptas leaves but we do not.
duodenum
Eucalyptus leaves have all the nutrition required by a koala. Their digestive systems are specially adapted to their diet f eucalyptus leaves. Other foods would not be suitable for their digestive system.
At the least this passage takes place via diffusion; introduce membranes and we find trans-spiration [from respire].
green