Mr. Mann's class conducted an experiment about plant response to the presence of water. They first planted pea seeds in the sand. To start with, they watered the seeds. Once the seeds began to grow, they reduced the 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. What is the manipulated variable in this experiment? A) plant root growth B) the sand used to grow the seeds C) limited watering, replaced by the cup of water D) the water used to germinate the seeds and get them growing
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Biology, 21.06.2019 23:00
Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution
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Biology, 22.06.2019 05:00
Idon’t know the answer and i’ve been stuck on it for a while now skskskskks
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Biology, 22.06.2019 11:00
In general, did the simulated mice align with your predictions from the punnett squares? yes or no?
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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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