Interactions between cyclins and cyclin-dependent kinases control the cell cycle. Explain how the presence or absence of inhibitors of cyclin-dependent kinases might play a role in normal cells becoming cancer cells.

The use of fertilizer on a large farm would have the largest effect on which of the following? rate of photosynthesis in local plants amount of smog in the lower atmosphere rate of anaerobic respiration in aquatic bacteria extent of eutrophication in nearby water bodies rate of evapotranspiration from surrounding area