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yanalaym [24]
3 years ago
14

BIOLOGY STUDENTS CLICK MY QUESTION PLEASE

Biology
1 answer:
Vladimir [108]3 years ago
3 0

Answer:

  • Periods of light-time
  • Temperature
  • Substrate/Soil type

Explanation:  

Controlled variable: Variables that are controlled and have no influence on the results of the experiment. These variables do not affect the change in the dependent variable values.

These variables must be the same for all the subjects or groups (control and experimental). In the case of plants, controlled variables are probably those needed by the plants to correct development.

All plants should be exposed to the same period of light-time and the same temperature. Also, the substrate or soil where the plants are growing should be the same.

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