Wch 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. NCERT Class VIII Science - Exemplar Problems Chapter 2. Nutrition in Animals
Answers
Answer: B
Molars and premolars are pair of teeth differ in structure but are
similar in function.
Explanation:
Molars: These are the biggest 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 absolutely in front of mouth.
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Molars:-
The molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals. They are used primarily to grind food during chewing. The name molar derives from Latin, molaris dens, meaning "millstone tooth", from mola, millstone and dens, tooth.
Premolars:-
premolars are located just before the molars in the human mouth. These teeth are also known as bicuspids. The premolars are considered transitional teeth, as they work to guide food from the cuspids near the front of the mouth back to the molars near the rear of the mouth for chewing.