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प्रश्न
Differentiate the following.
Diphyodont and Heterodont
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उत्तर
| Diphyodont | Heterodont |
| In human beings two sets of teeth (Diphyodont) are developed in their life time. | Permanent teeth are of four types (Heterodont). |
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संबंधित प्रश्न
Say true or false.
Brush your teeth once a day.
Every day we should brush our teeth _______ times.
Name the types of teeth present in an adult human being. Mention the functions of each.
Number of teeth present in each jaw is ______.
Match the Column I with Column II and select the correct option.
| Column I | Column II |
| i. Heterodont | a. Teeth embedded in separate sockets in jaw bone |
| ii. Diphyodont | b. Four sets of teeth |
| iii. Thecodont | c. Two sets of teeth in lifetime |
What is milk teeth?
How do you take care of your mouth and teeth?
Teeth are rooted in separate ______ in between the ______.
Write a note on the teeth of humans.
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 first tooth fell | Age at which last tooth fel | No. of teeth lost | No. of teeth 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.
