O Level Biology MCQs – Certification Test 449

Facts about Smoking Trivia (Question 449) – App & e-Book Download

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MCQ 449: Which is true about Nicotine (C₁₀H₁₄N₂):

a carcinogenic substance
makes blood clot easily
makes blood dilute
helps in lumen becoming narrower

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Facts about Smoking Trivia App & e-Book – O Level Biology Textbook Tests

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