Students plan to use several rain gauges to compare average monthly rainfal, on Virginia's Coastal Plain and Piedmont regions. Which of these variables
should be manipulated?

A .Height of the gauge
B. Brand of the gauge
C. Location of the gauge
D. Size of the gauge

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion