Final answer:
The dental formula refers to a system used to describe the number and types of teeth in an organism's mouth. The dental formula for Old World Monkeys, apes, and humans is 2.1.2.3, while the dental formula for New World Monkeys is 2.1.3.3.
Step-by-step explanation:
The term dental formula refers to a system used to describe the number and types of teeth present in an organism's mouth. It is represented by a series of numbers and symbols that indicate the number of each type of tooth in each quadrant of the jaw. In the dental formula, incisors are represented by the number 2, canines by 1, premolars by 2, and molars by 3.
The dental formula for Old World Monkeys, apes, and humans is 2.1.2.3. This means that in each quadrant of the jaw, there are 2 incisors, 1 canine, 2 premolars, and 3 molars.
The dental formula for New World Monkeys is 2.1.3.3. This means that in each quadrant of the jaw, there are 2 incisors, 1 canine, 3 premolars, and 3 molars.