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The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

Cells, Tissues, Organs, Organ systems | Level of organisation in organisms | Easy science video

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GCSE Biology - Levels of Organisation - Cells, Tissues, Organs and Organ Systems

This video covers: - What a

GCSE Biology - Levels of Organisation - Cells, Tissues, Organs and Organ Systems #13

The body is complex! Learn how it is organised into