| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ1.22 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Outline | Question number | 22 | Adapted from | N/A |
Question
What is a feature of the human circulatory system?
A. The wall of the right ventricle of the heart is the thickest of the four chambers.
B. The pulmonary artery and vena cava both carry deoxygenated blood.
C. Valves are found in arteries and veins but not capillaries.
D. Epinephrine acts on the pacemaker to reduce heart rate.
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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