Biology 0610 · IGCSE · Circulatory systems

Circulatory systems — practice question

Mammals possess a double circulation. Which option gives the correct order in which blood moves through a mammal?

  • Abody → heart → lungs → heart
  • Bbody → lungs → body → heart
  • Cheart → lungs → body → heart
  • Dheart → body → lungs → heart

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