A student wants to shorten the ripening time for tomato plants. he predicts that the more water the plants receive, the faster they will ripen. to test this prediction he grows 10 tomato plants in a sunny garden with dry soil, and 10 tomato plants in a garden with moist soil. he then records the time it takes for tomatoes to ripen on the plants in each garden location. using one or more complete sentences, state one error the student made in the design of this experiment.

Question

31-08-2018
Biology

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A student wants to shorten the ripening time for tomato plants. he predicts that the more water the plants receive, the faster they will ripen. to test this prediction he grows 10 tomato plants in a sunny garden with dry soil, and 10 tomato plants in a garden with moist soil. he then records the time it takes for tomatoes to ripen on the plants in each garden location. using one or more complete sentences, state one error the student made in the design of this experiment.

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Naqada Naqada · Answer 1 · 2018-09-09T15:05:35+02:00

The plants growing in the soil with high moisture content, it is assumed that these plants allowed to grow in shade. Hence, these plants will not receive sufficient sunlight. Therefore, the student has introduced different amounts of sunlight as an extra variable. To remedy the error, the student should keep both set of plants in the same amount of sunlight, but vary the amount of water received by each plant. The variable here should be water content, not sunlight.