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

Options

A. canines and incisors.
B. molars and premolars.
C. incisors and molars
D. premolars and canines.

Answer

To solve the question "Which of the following pairs of teeth differ in structure but are similar in function?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of Teeth**:
- There are four main types of teeth in humans: incisors, canines, premolars, and molars.

2. **Understand the Functions of Each Type**:
- **Incisors**: These are flat and sharp teeth located at the front of the mouth. Their primary function is to bite and cut food.
- **Canines**: These are pointed teeth located next to the incisors. Their main function is to tear food.
- **Premolars**: These teeth are located behind the canines and have a flat surface. They are used for chewing and grinding food.
- **Molars**: These are larger teeth located at the back of the mouth. They also function in chewing and grinding food, similar to premolars.

3. **Analyze the Given Options**:
- **Option A: Canines and Incisors** - These differ in structure and function.
- **Option B: Molars and Premolars** - Both have a similar function (chewing and grinding) but differ in structure (size and surface area).
- **Option C: Incisors and Molars** - These differ in both structure and function.
- **Option D: Premolars and Canines** - These also differ in both structure and function.

4. **Determine the Correct Pair**:
- The only pair that differs in structure but has a similar function is **Option B: Molars and Premolars**.

### Final Answer:
The correct answer is **Option B: Molars and Premolars**.

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