Living cytoplasmic structures are called cell organelles/cell inclusions.

Explanation

### Step-by-Step Solution:

1. **Understanding Living Cytoplasmic Structures**:
- Living cytoplasmic structures are defined as the components found within the cytoplasm of a cell that are essential for its function and survival. These structures are referred to as cell organelles.

2. **Identifying Cell Organelles**:
- Cell organelles are specialized structures that perform specific functions within the cell. Examples include:
- **Nucleus**: The control center of the cell that houses genetic material (DNA).
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