Both (A)_____ and intercalary meristems are (B)____ meristems and contribute to the formation of the primary plant body.

Answer

To solve the given question, we need to identify the correct terms for (A) and (B) based on our understanding of meristems in plants.

### Step-by-Step Solution:

1. **Understanding Meristems**:
- Meristems are regions in plants where cells remain undifferentiated and are capable of division. They are responsible for growth.

2. **Types of Meristems**:
- There are three main types of meristems based on their location:
- **Apical Meristem**: Located at the tips of shoots and roots; responsible for the elongation of the plant.
- **Intercalary Meristem**: Found between mature tissues, mainly at the base of leaves and internodes; contributes to growth in length.
- **Lateral Meristem**: Responsible for the thickening of the plant (secondary growth) but does not contribute to the primary plant body.

3. **Filling in the Blanks**:
- For (A), we need a type of meristem that, along with intercalary meristems, contributes to the formation of the primary plant body. The only type that fits this description is **apical meristem**.
- For (B), since both apical and intercalary meristems contribute to the primary plant body, they can be classified as **primary meristems**.

4. **Final Answer**:
- (A) Apical
- (B) Primary

### Complete Sentence:
Both (A) **apical** and intercalary meristems are (B) **primary** meristems and contribute to the formation of the primary plant body.