Certified Therapeutic Recreation Specialist (CTRS) Practice Exam

Which sequence lists levels of structural organization from simplest to most complex?

Cellular, chemical, tissue, organ, organism Chemical, cellular, tissue, organ, organ system Tissue, cellular, chemical, organ system, organ Chemical, tissue, cellular, organ, organ system

Correct Answer:

Chemical, cellular, tissue, organ, organ system

Explanation:

The standard progression is chemical, cellular, tissue, organ, organ system, and organism.

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