O Level Biology MCQs – Certification Test 15

Circulatory system MCQ (Question 15) – App & e-Book Download

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MCQ 15: Pulmonary veins carry:

red oxygenated blood
bluish red deoxygenated blood
deoxygenated blood from heart to the lungs
oxygenated blood from lungs to heart

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O Level Biology MCQ App & e-Book – Circulatory system Entry Tests

Microorganisms Test 26

Physical Environment and Water Test 27

Organ Transplantion and Rejection Test 28

Antibiotics and Penicillin Production Test 29

Glucose formation Test 30

Deforestation and Pollution Test 31

Spinal Cord and Nerves Test 32

Conditions Essential for Photosynthesis Test 33

Types of Drugs Test 34

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