Blood, the heart, circulation and respiration

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Question 34
Easy

If a person scrapes their knee, a scab eventually forms over the wound to prevent blood loss and stop pathogens from entering.

Which component of the blood is responsible for triggering this clotting process?

Plasma

Red blood cells

White blood cells

Platelets

Blood, the heart, circulation and respiration Questions

  1. GCSE
  2. /Biology
  3. /Blood, the heart, circulation and respiration