Which of these is a function of the cell membrane in all cells?

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?