Open your mouth, look into a mirror and try to count the different types of teeth in your mouth. Compare them with Figure 2.3 on page 13 of your NCERT textbook. Record your observations in the table below:
(a) Did you observe any difference in the number of teeth? If yes, could you identify which type of teeth showed the difference?
(b) Compare the number and type of teeth in an adult (say your parents or cousins who have reached the age of 25–30 or more). Note your observation.
(a) Yes there is a difference in the number of teeth and the type of teeth shown in the figure and in the mouth. The difference was in the molars. In the diagram given 12 molars as shown whereas in my mouth I cannot find any molar.
(b) In an adult total number of teeth are 32 Where are there are only 20 teeth in my mouth. The difference are in the number of molars. There are no molars in my mouth whereas there are all 12 molars in my parents mouth.