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Biology 18 Online
OpenStudy (devonhoward15):

Biology

OpenStudy (devonhoward15):

@alivejeremy

OpenStudy (liziekay):

C because an independent variable is the variable that is changed or controlled in a scientific experiment. Independent variables are the variables that the experimenter changes to test their dependent variable. The effect on the dependent variable is measured and recorded.

OpenStudy (devonhoward15):

what would the control group be?

OpenStudy (devonhoward15):

@liziekay

OpenStudy (liziekay):

What's a control group?

OpenStudy (liziekay):

According to google, The control group is defined as the group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.

OpenStudy (liziekay):

What do you think it is?

OpenStudy (devonhoward15):

the young trees

OpenStudy (liziekay):

what's your reasoning?

OpenStudy (devonhoward15):

cause it doesnt get touched

OpenStudy (liziekay):

Well, are the scientists using it to compare the young trees to the young hemlocks? In this scenario, no. The trees don't really matter.

OpenStudy (devonhoward15):

would it be the fence than?

OpenStudy (liziekay):

She's looking at the young hemlocks and that would be the control group because that's the main point of the experiment.

OpenStudy (devonhoward15):

ok thanks

OpenStudy (devonhoward15):

thee ones surrounded by fencing or not surrounded?

OpenStudy (liziekay):

The population of the hemlocks doubling isn't receiving treatment from the researchers, it's just doubling. Understand?

OpenStudy (liziekay):

Not sure, reread the problem and you'll understand what I'm talking about.

OpenStudy (devonhoward15):

ok thanks again

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