Final answer:
The transfer of specific molecules through cell membranes is an important factor in the process of 3) homeostasis. Cell membranes are selectively permeable, allowing some substances to pass through while preventing others from entering or leaving the cell.
Step-by-step explanation:
The transfer of specific molecules through cell membranes is an important factor in the process of homeostasis. Cell membranes are selectively permeable, allowing some substances to pass through while preventing others from entering or leaving the cell. The transport of substances across the membrane can occur through various mechanisms, including passive diffusion, facilitated transport, and active transport.