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2 votes
3)

Which is the SIMPLEST level of organization in a human being?
A)
cells
B)
organs
C)
tissues
D)
organ systems

1 Answer

0 votes
Answer: A

Explanation: The order from simplest to to most complex are organelle, cells, tissues, organs, organ systems, organisms, etc. based off the choices, cells come before
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User Arslanaybars
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