Multiple choice general knowledge

Which element in the blood helps the body fight against diseases and infections?

  1. Red Blood Cells

  2. Platelets

  3. White Blood cells

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

White blood cells (leukocytes) are the key components of the immune system that fight infections and diseases. They attack bacteria, viruses, and other pathogens. Red blood cells carry oxygen, platelets help with clotting, so white blood cells are the correct answer for disease fighting.

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