GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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James is conducting an experiment to test the effect of insecticides on frogs. What is the control group in his experiment?
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The frogs that were exposed to 15 ml of insecticide.
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The frogs that did not survive the experiment.
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The frogs that were not exposed to the insecticides.
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The frogs that were exposed to 30 ml of insecticide.
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Explanation:
Detailed explanation-1: -The amount of water is the independent variable because you are testing to see if water improves the growth of the plant. You are changing the amount of water given to each plant, so that you can see its effects on the plant.
Detailed explanation-2: -In this example, the amount of water given to the plant is controlled by the researcher and, thus, is the independent variable. The growth rate is the dependent variable because it is directly dependent on the amount of water that the plant receives and it’s the variable we’re interested in measuring.
There is 1 question to complete.