Question

A biologist wants to determine the effect of a new fertilizer on tomato plants. What would be the control?All PlantsPlants not treated with the Fertilizer.The FertilizerPlants treated with the Fertilizer.

Answer 1

Answer:b

Explanation:

Answer 2

Remember that the control variable does not change in the experiment or in any study.

So the control here will be all the plants because you can not control the type of the plant.