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In a scientific experiment, how many independent variables should be tested at the same time? A. none B. one C. two D. three or more
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Updated 8/5/2015 2:53:47 PM
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In a scientific experiment, only one independent variables should be tested at the same time.

Added 8/5/2015 2:53:47 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Janet17 [7/29/2016 1:05:41 PM]
In a scientific study, a conclusion can A) state a theory. B) ask a question. C) prove a hypothesis. D) support a hypothesis.
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Updated 8/4/2015 2:55:48 PM
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In a scientific study a conclusion can: support a hypothesis.
Added 8/4/2015 2:55:47 PM
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In an experiment to test the hypothesis that added phosphate will cause marigolds to produce more blooms, the experimenter has two groups of pots planted with marigold seeds. One group gets watered with phosphate added to the water, while the other group gets watered with no phosphate. Both groups get the same amount of water and light. Which is a controlled variable in this experiment? A. number of pots B. amount of water C. amount of phosphate D. amount of blooms on a ...
Weegy: A. number of pots (More)
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Updated 275 days ago|7/29/2016 1:09:03 PM
1 Answer/Comment
In an experiment to test the hypothesis that added phosphate will cause marigolds to produce more blooms, the experimenter has two groups of pots planted with marigold seeds. One group gets watered with phosphate added to the water, while the other group gets watered with no phosphate. Both groups get the same amount of water and light. The controlled variable in this experiment is: amount of water.
Added 275 days ago|7/29/2016 1:08:57 PM
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Which is a function of the plant cell wall? A. It keeps the cell dry. B. It gives the cell its color. C. It prevents the cell from bursting. D. It holds the cell in its proper position.
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Updated 7/19/2015 7:22:25 PM
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One function of the plant cell wall is: It prevents the cell from bursting.
Added 7/19/2015 7:22:25 PM
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Confirmed by jeifunk [7/19/2015 7:33:18 PM]
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