In which part of the cow's alimentary canal is cellulose digested?

Sometimes people start coughing when they are eating and say, 'The food went down the wrong way/ What is the 'wrong way' that the food might have gone down?

What prevents the food from going down the wrong way?

Why could it be dangerous to drink water or milk while you are lying down?

Study the picture and answer the question.

Find out the parts of the digestive system of a hen and label them in the picture.

Study the picture and answer the question.

What kind of food does a hen eat?