Question

how do substances make their way in and out of the nuclear envelope? nuclear pores osmosis diffusion

Explanation:

The nuclear envelope has nuclear pores that act as channels for the transport of substances in and out of the nucleus. Osmosis is the movement of water across a semi - permeable membrane and diffusion is the movement of substances from high to low concentration, but neither are the main way substances cross the nuclear envelope.

Answer:

nuclear pores