As a rule, the teeth in a given mammal's mouth look very similar because they all have the same function.
a. true
b. false

False

Explanation:

The teeth of mammals do not have the similar function to perform. They have different types, number and sizes of teeth that are equipped to perform different functions.

Example: Human beings have incisors,canines, molar and premolar. The incisors are used to cut the food and hold the food.

The canines are use to tear hard food such as meat. The molars and premolars are used to grind the food.

Hence, the given statement is false.