In traditional landscaping, leaves are raked off the ground and bagged. In which of the following ways does this practice most significantly disrupt natural nutrient cycling? A. It carries away microorganisms that can perform nitrogen fixation.

B. It reduces the rate of oxygen and carbon cycling via photosynthesis.

C. It prevents carbon, oxygen, and nitrogen from being returned to the soil.

D. It increases the amount of carbon dioxide that is released to the atmosphere.

the answer is a) cell division.

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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.