Science MCQs
Practice multiple choice questions with instant feedback. Select an option to see if you're correct.
Anaerobic respiration in muscles produces:
Which blood vessel carries oxygenated blood from the lungs to the heart?
What is the function of valves in veins?
Which part of the heart pumps blood to the entire body?
What is the main component of plasma in blood?
Which blood cells are responsible for fighting infections?
What gives red blood cells their color?
How long do red blood cells typically survive in the bloodstream?
What is hypertension?
Which of the following is NOT a symptom of a heart attack?
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Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.
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