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Biology, 07.07.2019 17:00 didraga777

Jordan is doing a science fair project on the effects of music on the growth of tomatoes. he has two tomato plants, plant a and plant b, that he grows in a window and gives the same amount of water. plant a is exposed to classical music using headphones attached to the soil. throughout the growth period, jordan counts the number of tomatoes produced by each plant. list one of the experimental constants in this experiment.

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