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2.2 Animal tissues, organs and organ systems

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Question 3

Scientists recorded the mean number of days per week that adults reported drinking alcohol and the number of new cases of liver damage in each group over five years.

Mean number of days per week adults reported drinking alcoholNew cases of liver damage per 100 000 adults over five years
0.512
1.421
3.039
5.268

Explain what the results show and whether they are enough to conclude that drinking alcohol causes liver damage.

[6]
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2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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