BLOOD CIRCULATION

by: Marna Coetzee THE BLOOD CIRCULATION SYSTEM (cardiovascular system) delivers nutrients and oxygen to all cells in the body.  There are two circulatory systems that are connected. The systemic circulation provides organs, tissues, and…

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SLEEP

by: Marna Coetzee Sleep keeps us healthy and functioning well! It lets your body and brain repair, restore, and re-energise. It plays a critical role in immune function, metabolism, memory, learning…

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