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2.2 Animal tissues, organs and organ systems

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Question 61
F

Humans have a double circulatory system.

a.

Describe what is meant by a double circulatory system.

[2]
b.

Blood is returned to the heart after it has passed through the lungs. Explain the advantage of this.

[2]
c.

Name the muscular wall that separates the right side of the heart from the left side.

[1]
Markscheme

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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