Answer:
Independent: type of fertilizer
dependent: plant growth
control: soil, seed, water, type of pot, environment/amount of sunlight, air quality, etc.
Explanation: Think about it like this: the dependent variable DEPENDS on the independent variable. The fertilizer will control how tall the plant grows (if there is a relationship between them). Then the control variable is ANY VARIABLE that remains the same in all trials. You can only manipulate one variable (have one independent variable) or else the experiment is not valid.
The protein and enzyme complex that is important in controlling the cell cycle three of the processes it controls is the <span>cyclin and cyclin dependent kinases.
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