Key term for OCR GCSE Biology A, used in Health and disease.
Fragments of cells in the blood that clump together to form clots and scabs, sealing wounds against pathogen entry.
Platelets appears in OCR GCSE Biology A revision content for Global challenges, especially Health and disease and Non-specific defence systems.
Global challenges
Health and disease • Non-specific defence systems
Global challenges
Health and disease • White blood cells and platelets
Scaling up
The challenges of size • Human circulatory system
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