Question

which of the following is arranged in correct order from the simplest to the most complex?
options:

• molecular, cellular, tissue, organ, organ system, organism
• organ, organism, molecular, cellular, tissue, organ system
• cellular, tissue, molecular, organ system, organ, organism
• tissue, cellular, molecular, organ, organ system, organism

Explanation:

The biological organization hierarchy from simplest to most complex starts with molecules (basic chemical units), then cells (basic structural/functional units of life), tissues (groups of similar cells), organs (groups of tissues), organ systems (groups of organs), and finally the organism (whole living entity). So the correct order is molecular, cellular, tissue, organ, organ system, organism.

Answer:

molecular, cellular, tissue, organ, organ system, organism