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 labelled diagram to show the internal structure of a mammalian tooth with two roots.

Study the diagram given below and then answer the questions that follow:

(a) Name the parts labeled 1, 2, 3, 4, 5 and 6.
(b) Identify the tooth and give a reason to support your answer.
(c) Describe the structure of the part labeled '3'.
(d) Give the total number of the type of tooth mentioned in '1' above, in the mouth of an adult and state its function.

Study the following dental formula and then answer the questions that follow:

$i\dfrac{3}{4} \enspace c\dfrac{0}{0} \enspace pm\dfrac{0}{1} \enspace m\dfrac{1}{1}$

(a) What is the total number of teeth in the (i) upper jaw and (ii) lower jaw?

(b) State the total number of teeth present in the dentition.

(c) Give the dental formula of an adult human being.