Question

biochemistry quiz
11 of 16
the experiment pictured illustrates a test of the effect of fertilizer on plant growth. select the factor that would not need to be held constant.
amount of fertilizer
amount of water
length of growing period
type of flower used

Explanation:

In an experiment testing the effect of fertilizer on plant growth, the amount of fertilizer is the independent variable that is being changed to observe its impact. Other factors like amount of water, length of growing period, and type of flower should be held constant to ensure that any changes in plant growth are due to the fertilizer and not these other variables.

Answer:

Amount of fertilizer