PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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how much water or sun the plant gets
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how tall it grows
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Either A or B
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None of the above
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Detailed explanation-1: -Plant height is the dependent variable that responds to the change in the independent variable. Each plant is exposed to an equal amount of sunlight, so sunlight is the control variable.
Detailed explanation-2: -For this question, the amount that the plants grow is what is being measured, so this is the dependent variable. The dependent variable depends on the independent variable. The amount that the plants grow depends on the amount of sun they get.
Detailed explanation-3: -The dependent variable is the outcome of the manipulation. For example, if you are measuring how the amount of sunlight affects the growth of a type of plant, the independent variable is the amount of sunlight. You can control how much sunlight each plant gets. The growth is the dependent variable.
Detailed explanation-4: -For example people’s weight (dependent variable) might depend on their height (independent variable).
Detailed explanation-5: -In the plant experiment, the independent variable could be fertilizer-some plants will get fertilizer, others will not. The scientists change the amount of the independent variable (the fertilizer) to observe the effects on the dependent variable (plant growth).