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IGCSE | CAIE | Biology
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IGCSE
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CAIE
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Biology
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Concept
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9. Transport in animals
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9.1 Circulatory systems
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9.1.1—Circulatory system as a system
Browse topics
9. Transport in animals
Syllabus
0610–2026–2027
Section
9
Level
—
Exam analysis
Most tested topics
Circulatory systems
Heart
Blood vessels
Blood