What makes endocytosis and exocytosis active transport mechanisms?
1) they happen through simple diffusion.
2)they involve taking a large molecule into the cell.
3) they require energy to change the cell membrane.
4) they involve the passage of molecules across the cell membrane.

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents

5points what is term for the process of gathering information through images taken at a distance? o a. global positioning o b. topography o c. remote sensing o d. cartography submit