ScienceClass 7CBSE
Q
Which of the following pair of teeth differ in structure but are similar in function? (a) canines and incisors. (b) molars and premolars. (c) incisors and molars. (d) premolars and canines.
A
Soln:
The answer is (b) molars and premolars.
Explanation:
Our teeth tear and grind the food before swallowing food. There are four types of teeth.
Incisors: front eight teeth, 4 in the upper jaw and 4 in the lower jaw.
Canines: There are 4 canines, one on each side of each jaw.
Premolars: There are 8 premolars. Two premolars in each of the upper and lower jaws.
Molars: There are 12 molars, three in each half of both upper and lower jaws.