Question

this organelle provides a semi - permeable barrier that selectively allows things in and out of the cell
nucleus
mitochondria
cytoplasm
cell membrane

Explanation:

The cell membrane is a semi - permeable barrier. It controls the movement of substances in and out of the cell. The nucleus contains genetic material, mitochondria are the power - houses of the cell, and cytoplasm is the jelly - like substance inside the cell.

Answer:

D. Cell Membrane