Question

select the part whose main job is to direct cell activities by sending instructions to different parts of the cell. centrosome nucleus cytoplasm lysosome

Explanation:

The nucleus contains the cell's genetic material (DNA) and controls cell - activities by sending instructions to other parts of the cell. The centrosome is involved in cell division, the cytoplasm is the jelly - like substance that fills the cell and holds organelles, and the lysosome is responsible for breaking down waste.

Answer:

nucleus