issb general knowledge MCQ #692

Which blood cells carry oxygen?

issb general knowledge MCQ #692

  1. Question 1

    Q1. Which blood cells carry oxygen?

    • A) Red blood cells
    • B) White blood cells
    • C) Platelets
    • D) Plasma

    Answer: Red blood cells

    Explanation: Red blood cells transport oxygen using hemoglobin. Work each step carefully; ISSB math rewards accuracy under time pressure.