The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Order the steps above into a logical sequence that might represent steps in the phosphorus cycle. A) I, II, III, IV, V, VI. B) I, II, IV, III, V, VI. C) IV, III, I, V, II, VI. D) II, IV, III, I, V, VI.

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

The model illustrates a process by which a substance is taken up by a cell. which statements describe the process? a. the model shows the process of endocytosis. b. the process shown in the model requires energy from the cell. c. the cell membrane in the model remains intact throughout the process. d. the model shows the process of facilitated diffusion.

At what point in the eukaryotic cell cycle does mitosis occur