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stepan [7]
2 years ago
6

You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plan

t receives pure water. After a two-week period, the height is measured. Item at position 5 5 6 points The C.G. (control group) is
Biology
1 answer:
Kruka [31]2 years ago
5 0

Answer:

The fourth plant that receives pure water is the control group.

Explanation:

The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, <em>the different concentrations of salty water that each plant receives</em>. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, <u>except for the study treatment.</u>

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