Class 12 Biology · Chapter 10 · Test 2
Charts and Experimental Design
40 MCQs
40 questions · 35 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
In a pie chart, what does the full circle represent?
- A180°
- B280°
- C380°
- D360°
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Answer: D
The whole circle represents 100% of the data or 360 degrees.
Question 2
What do error bars represent in a chart?
- AAverage
- BVariability or uncertainty in data
- CBoth of these
- DNone of these
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Answer: B
Error bars visually show variability or uncertainty around the central value.
Question 3
In an experiment, what does the dependent variable represent?
- AThe factor kept constant
- BThe factor being changed
- CThe factor ignored
- DThe factor being measured
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Answer: D
The dependent variable is what is measured and changes in response to the independent variable.
Question 4
What is the main purpose of including a control group in an experiment?
- ATo test the dependent variable
- BTo provide a baseline for comparison
- CTo collect random data
- DAll of these
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Answer: B
The control group receives no treatment and acts as a baseline.
Question 5
Which group in an experiment receives the treatment?
- AControl group
- BDependent group
- CExperimental group
- DIndependent group
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Answer: C
The experimental group is exposed to the condition being tested.
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