In an energy pyramid, which way does energy flow? A From the top of the pyramid to the bottom
B From the bottom of the pyramid to the top
C in all directions
From the environment to the organisms

if every thing eats the thing underneath it, then the answer is:

B. From the bottom of the pyramid to the top

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.