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  1. GCSE
  3. Biology OCR
  5. 2.2.3 The human circulatory system

2.2.3 The human circulatory system

Spec J247

Revise OCR GCSE Biology 2.2.3 The human circulatory system with the question bank, lessons, revision guides, and flashcards.

describe the human circulatory system • the relationship with the gaseous exchange system, the need for a double circulatory system in mammals and the arrangement of vessels

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