Kevin decides to find out which fertilizer is best for tomatoes. he pots up three plants, all with the same soil, giving one no fertilizer, giving the second type a fertilizer, and giving the third type b fertilizer. in this experiment, what is the control, or kevin's standard for comparison?

The control is the one without the fertilizer.
Control in an experiment usually is the one without the variable to be tested, which is fertilizer in this case.
Therefore he can use the one without the fertilizer to compare to the others with different types of fertilizers, to see how fertilizers affect their growth.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.