This is a quick revision quiz for chapter 7 of the AS AQA Biology student book. It covers the topic of variation.

1. AS AQA Biology
UNIT 2
Chapter 7 Revision Quiz
Variation
Total: ___ / 10
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2. 1. What do you call variation between species? (1)
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2. What method is used to estimate population size? (1)
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3. What is the best way to avoid bias when carrying out this
method? (2)
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4. What are the two causes of variation? (2)
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5. What causes variation such as height of an organism? (1)
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6. What type of curve does this data show? (1)
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7. What does standard deviation tell you about a sample? (2)
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