Which one of the following is the <strong>CORRECT</strong> sequence in increasing complexity?

  1. A. Protein - Organism - Tissue - Organ
  2. B. Protein - Organ - Tissue - Organism
  3. C. Protein - Organism - Organ - Tissue
  4. D. Protein - Tissue - Organ - Organism

Correct Answer: D. Protein - Tissue - Organ - Organism

Explanation

The biological hierarchy of increasing complexity goes from macromolecules (Proteins) to Cells, Tissues, Organs, Organ Systems, and finally an Organism.

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