the diversification of tooth shapes has allowed mammals to exploit a wide range of foods. which of these tooth shapes is not matched to its primary function in obtaining food? the diversification of tooth shapes has allowed mammals to exploit a wide range of foods. which of these tooth shapes is not matched to its primary function in obtaining food? a. elongated and sharp canines at the front of the mouth in carnivores help pierce into flesh and hold food firmly when tearing it apart.b. incisors are the front teeth in many mammals that are more blade-like and sharp. they cut off pieces of food and help grip the food. c. molars are the back teeth in mammals that are large and flattened. they are used for grinding and crushing food while chewing. herbivores have large flattened teeth (molars) for grinding and crushing plant tissues. carnivores have sharp or pointed teeth (incisors or canines) to cut and tear flesh.