The figures (A, B, C and D) shown below represent different kinds of teeth in humans. Study the figures and answer the following questions:

(a) What kind of teeth do A, B, C and D represent ?

(b) Write one structural feature/shape of each.

(c) Mention the number of teeth of each kind in one jaw with their specific position.

(d) Name two minerals present in teeth.

(e) What do you mean by 'Wisdom tooth'?

Draw a neat diagram of the "Microscopic Structure of an intestinal villus" and label the parts given below :

1. Epithelium
2. Capillaries
3. Lacteals

Answer the following questions :

(a) What is the advantage of having a large number of villi on the inner surface of small intestine ?

(b) Write the important role of lacteals.

(c) Name the juice secreted from the glandular cells of small intestine.

(d) Name the specific secretions of:

1. Salivary gland
2. Stomach
3. Liver
4. Pancreas

Vedika observed the following structure in a biology chart showing the digestive system.

(a) Name the structure which stores bile juice.

(b) Mention the gland which secretes bile juice.

(c) What are the three enzymes found in the pancreatic juice which can act over proteins, carbohydrates and emulisifed fats ?