The meristem which occurs at the tips of roots and shoots and produce primary tissues are called___________.

Answer

**Step-by-Step Solution:**

1. **Understanding Meristems**: Begin by recognizing that meristems are regions in plants where cells divide and grow. They are essential for plant growth and development.

2. **Types of Meristems**: There are three main types of meristems based on their location:
- **Apical Meristems**: Located at the tips of roots and shoots.
- **Lateral Meristems**: Found between mature tissues, contributing to the thickness of the plant.
- **Axillary Meristems**: Located at the nodes and internodes of the plant.

3. **Identifying the Correct Type**: The question specifically asks for the type of meristem that occurs at the tips of roots and shoots and is responsible for producing primary tissues.

4. **Conclusion**: The meristem that fits this description is the **Apical Meristem**. It is responsible for the primary growth of the plant, leading to an increase in length.

5. **Final Answer**: Therefore, the answer to the question is: **Apical Meristems**.

---