stella wants to test the hypothesis \if carbon dioxide levels increase, the growth rate of sunflowers will…

stella wants to test the hypothesis \if carbon dioxide levels increase, the growth rate of sunflowers will increase.\ she places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. she plans to measure the daily height of the plants for two weeks and graph the data. which option would allow stella to set up a control group for the experiment? she should provide mist to each of the plants except one plant to keep the air moist and fertilize the plants. she should give the plants receiving the least co₂ a little more oxygen to compensate for the difference in gases. she should give all the flowers the same amount of water. she should place one flower in a similar container, but not pump carbon dioxide into it.

stella wants to test the hypothesis \if carbon dioxide levels increase, the growth rate of sunflowers will increase.\ she places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. she plans to measure the daily height of the plants for two weeks and graph the data. which option would allow stella to set up a control group for the experiment? she should provide mist to each of the plants except one plant to keep the air moist and fertilize the plants. she should give the plants receiving the least co₂ a little more oxygen to compensate for the difference in gases. she should give all the flowers the same amount of water. she should place one flower in a similar container, but not pump carbon dioxide into it.

Answer

Brief Explanations:

Un grupo de control en un experimento es un grupo que no es sometido al factor experimental. En este caso, el factor experimental es la cantidad de dióxido de carbono. Colocar una flor en un contenedor similar pero sin bombear dióxido de carbono crea un grupo de control para comparar el crecimiento de las otras plantas expuestas a diferentes niveles de dióxido de carbono.

Answer:

She should place one flower in a similar container, but not pump carbon dioxide into it.