Biology for IGCSE & O level - Organisation Of The Organism (Section 3 - No. 14)
Which of the following represents the correct order of organization, from simplest to most complex?
Cells -> Tissues -> Organs -> Organ systems
Tissues -> Cells -> Organs -> Organ systems
Organs -> Tissues -> Cells -> Organ systems
Organ systems -> Organs -> Tissues -> Cells
Explanation
Cells make up tissues, tissues make up organs, and organs make up organ systems.
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