Type of teeth present in humans is

Options

A. Diphyodont and homodont
B. Monophyodont and thecodont
C. Monophydont and homodont
D. Diphyodont and heterodont

Answer

To determine the type of teeth present in humans, we need to analyze the characteristics of human dentition. Here’s a step-by-step breakdown:

### Step 1: Understand the Types of Teeth
Humans possess two primary types of teeth based on their development:
- **Diphyodont**: This term refers to organisms that develop two successive sets of teeth. In humans, the first set is known as primary or milk teeth, and the second set is the permanent teeth.
- **Monophyodont**: This term refers to organisms that develop only one set of teeth throughout their lifetime. This does not apply to humans.

**Hint**: Remember that "di" in diphyodont indicates two sets of teeth.

### Step 2: Identify the Structure of Teeth
Next, we categorize human teeth based on their structural arrangement:
- **Thecodont**: This term refers to teeth that are set in sockets (alveoli) in the jawbone. Human teeth are thecodont because they are anchored in the jawbone sockets.
- **Acrodont**: This refers to teeth that are attached to the top of the jawbone, which does not apply to humans.

**Hint**: Think about how human teeth are rooted in the jawbone.

### Step 3: Classify the Variety of Teeth
Humans also have different types of teeth based on their shape and function:
- **Heterodont**: This term indicates that the teeth are of different types and shapes (incisors, canines, premolars, and molars). Humans have four distinct types of teeth, making them heterodont.
- **Homodont**: This term refers to organisms that have teeth that are all of the same type, which does not apply to humans.

**Hint**: Consider the different functions of the various types of teeth humans have.

### Step 4: Conclusion
Based on the above classifications, we can conclude that the type of teeth present in humans is:
- **Diphyodont** (two sets of teeth: primary and permanent)
- **Thecodont** (teeth rooted in sockets)
- **Heterodont** (four different types of teeth)

Thus, the correct answer to the question is **Diphyodont and Heterodont**.

**Final Answer**: The type of teeth present in humans is **Diphyodont and Heterodont**.