Teeth of rabbits are

Options

A. Thecodont
B. Diphyodont
C. Heterodont
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of teeth present in rabbits. The options provided are thicodon, diphycodon, heterodon, or all of these.

2. **Identifying Rabbit as a Mammal**: First, we recognize that rabbits are mammals. This is important because mammals have specific types of teeth.

3. **Defining Heterodont Teeth**: Heterodont teeth are those that vary in shape and function. In mammals, including rabbits, teeth are differentiated into types such as incisors, canines, and molars, which serve different purposes.

4. **Defining Thecodont Teeth**: Thecodont teeth are those that are anchored in sockets in the jawbone. This means that the teeth are embedded in the jaw, which is a characteristic of mammalian teeth, including those of rabbits.

5. **Defining Diphyodont Teeth**: Diphyodont teeth refer to a dental pattern where two sets of teeth develop in a lifetime. This means that rabbits have a primary set of teeth that they lose and are replaced by a permanent set.

6. **Confirming Rabbit's Dental Formula**: The dental formula for rabbits is typically represented as 2033/1023, indicating the number and types of teeth present. In total, rabbits have 28 teeth.

7. **Conclusion**: Since rabbits exhibit all three characteristics—heterodont, thecodont, and diphyodont—this leads us to conclude that the correct answer is "all of these."

8. **Final Answer**: Therefore, the correct answer is option D: all of these.

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