Chemistry, 18.04.2020 23:54, sharperenae7274
Mr. Mann's class conducted an experiment about plant response to the presence of water. They first planted pea seeds in sand. In the beginning, they watered the seeds. Once the seeds began to grow, they reduced the amount of water they gave the plants. Instead, they placed a porous container of water close to the growing plant to see if the plant's roots would grow towards the cup of water. In science language, this plant response is called hydrotropism. An illustration of the experimental design can be seen here. Some of the students also wanted to see if the plant would grow toward the window if they withheld light. They kept their container, with the porous cup, in a dark corner, but close to a window.
What comment can you make about the second group's independent or manipulated variable?
A. Their manipulated variable is plant response to water and light
B. The amount of water and light would be their independent variables
C. Their manipulated variable is the amount of light the plant receives
D. They can only change one variable at a time, either water or light, not both.
Answers: 1
Chemistry, 22.06.2019 06:00, lindseyklewis1p56uvi
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Chemistry, 22.06.2019 09:30, janetexcoelho
What does the mass of 0.7891 mol of ferric oxide (fe2o3)
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Chemistry, 22.06.2019 13:10, bartonamber4042
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
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Chemistry, 23.06.2019 00:30, runninglovexoxo
The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2
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Mr. Mann's class conducted an experiment about plant response to the presence of water. They first p...
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