Question

3.
Collect data from your friends, neighbours and classmates to know more
about "milk teeth".
Tabulate your data. One way of doing it is given below:
S. No. Age at which Age at which No. of teeth No. of teeth
first tooth fell last tooth fell lost
replaced
1.
2.
3.
4.
5.
Find out from at least twenty children and find the average age at which
children lose the milk teeth. You may take help of your friends.​

Answer 1

Explanation:

Deciduous teeth – commonly known as baby teeth, milk teeth, temporary teeth, and primary teeth – are the first set of teeth in the growth development of humans and other diphyodont mammals. They develop during the embryonic stage of development and erupt (that is, they become visible in the mouth) during infancy.