Plz me
based on the diagram oxygen flows through the circulatory system in which order

a. 1, 2, 4
b. 2, 1, 3
c. 5, 3, 1
d. 3, 2, 4

The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport