Read Blood vessels
This SOF ISO pattern tests oxygenated and deoxygenated blood. Read the condition carefully, then use the method below before you solve.
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
Follow blood in one continuous circuit
Heart → vessels → tissues → back to the heart
Heart → blood vessels → body tissues → heart. Use oxygen content and vessel direction only when the question gives that condition.
Find the tested idea
Name the biological structure, process or relationship being tested before comparing the options.
Work from the evidence
Link the structure to its function, or trace the process in its natural order. Use the stated condition rather than a memorised exception.
Verify before choosing
Use the wording, diagram and units exactly as given. Select an option only after it satisfies every stated condition.
OlympIQ exam lens
- ✓Identify the biological level.
- ✓Match structure with function.
- ✓Check the condition in the stem.
Check that the option uses the correct level of organisation: part, organism, population or ecosystem.
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