Question

select the part whose main job is to send proteins and other substances to different parts of the cell. mitochondria cytoskeleton golgi chloroplast

Explanation:

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles. Mitochondria produce energy (ATP). The cytoskeleton provides structural support. Chloroplasts (in plants) conduct photosynthesis. So the part whose main job is to send proteins and other substances to different parts of the cell is the Golgi.

Answer:

Golgi