Rank the following levels or organization from 1-5 with one being the least inclusive and five being the most inclusive, tissue, organ system, organism, organ and cell

The answer is:

1 - Cell

2-Tissue

3 - Organ

4-Organ system

5-Organism

Explanation:

The cell is the smallest element, for example neurons. Then come the tissues (set of cells) : nerve tissue. The set of organs considered an organ, example: brain. The set of organs forms an organ system (example: central nervous system), and then the set of organ systems forms an organism.