Mammals have teeth of this type

Options

A. homodont
B. heterodont
C. acrodont
D. polyphydont

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about the type of teeth that mammals possess.

2. **Identifying Key Terms:**
- **Heterodont:** This term refers to having different types of teeth with various shapes and functions.
- **Thecodont:** This refers to teeth that are embedded in sockets within the jaw.
- **Diphyodont:** This indicates that teeth come in two sets during a lifetime (milk teeth and permanent teeth).

3. **Analyzing the Types of Teeth:**
- **Incisors:** Used for cutting food.
- **Canines:** Used for tearing flesh.
- **Premolars and Molars:** Used for grinding food.

4. **Evaluating the Options:**
- **Homodont:** All teeth are the same type. This does not apply to mammals.
- **Heterodont:** Different types of teeth are present, which is true for mammals.
- **Acrodont:** Teeth are attached directly to the gums without sockets. This does not apply to mammals.
- **Polyphyodont:** Teeth that are replaced multiple times throughout life. This does not apply to mammals.

5. **Conclusion:**
Based on the definitions and characteristics of the teeth types, the correct answer is **Heterodont**. Mammals have a heterodont condition, meaning they have different types of teeth that serve various functions.

**Final Answer: Heterodont**

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