What cellular organelle is responsible for modifying snorting and packaging proteins and lipids

What causes temperature extremes in the desert

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously