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Which shows three human body parts in order from the simplest level of organization to the most complex?

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2 votes

Answer:

edge

Step-by-step explanation:

red blood cell → heart tissue → circulatory system

User Edwardyao
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Answer:

The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.

Step-by-step explanation:

User Mees Van Wel
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