Question

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

Explanation:

Nuclear pores are large protein complexes that span the nuclear envelope. They regulate the transport of molecules between the nucleus and the cytoplasm. Osmosis is the movement of water across a semi - permeable membrane, which is not relevant here. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, but it is not the main mechanism for transport across the nuclear envelope (except for very small molecules). The nuclear pores are specifically designed for the selective transport of various substances like RNA, proteins etc.

Answer:

nuclear pores