Which of the following pair of teeth differ in structure but are similar in function?

Molars: These are the largest teeth of all. They are 12 in number. Their function is to grind and crush food.

Premolars: The teeth present next to molars are the premolars. They are 8 in number. They also perform the same function as that of molars i.e. grinding and crushing of food.

*premolars and molars have a flat top surface.

Canines: these are the next set of teeth. They are 4 in number. Their main work is to tear the food. These are present mainly in the carnivorous animals.

Incisors: These are the first set of teeth which develop in a baby. They are total 8 in number and are located exactly in front of the mouth. They are used for biting.