Question

Which of the following sequences represents the proper levels of organization (from simplest to most complex) in multicellular organisms?
A.
tissues, organ systems, organs, cells
B.
organ systems, organs, tissues, cells
C.
cells, tissues, organs, organ systems
D.
tissues, cells, organs, organ systems

Answer 1

C. cells, tissues, organs, organ systems

Explanation: Individual cells are the basic unit, similar cells form tissues, different tissues combine to make organs, and organs work together in organ systems.