To test how fertilizer affects tomato plants , a farmer divided a field of young tomato plants into 10 plots of equal size. the farmer then put fertilizer on half of the plots and no fertilizer on the other half of the plots. the control group in this experiment was :

Control Group - tomato crop on which no fertilizer is applied

Explanation:

The control group in this experiment is the tomato crop on which no fertilizer is applied.

A control group in an experiment is the group on which the testing/treatment with in an experiment is not applied in order to compare it with the group that receives the testing/treatment.

Hence, tomato crop (which do not receive fertilizer) are the ones whose production will be compared with the tomato crops that receive fertilizers.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

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