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.
Explanation:
It is True that your eyes dart around rapidly during REM sleep
It is true that mainly you dream during REM sleep
This is false because your diapragm and eye muscles move during REM sleep
a model of a human heart
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