Question

instructions urinary system cuboidal cell kidney epithelial tissue least complex most complex

Explanation:

To order the structures from least to most complex, we use the biological hierarchy of organization: cell → tissue → organ → organ system.

Step1: Identify the least complex

The cuboidal cell is a single cell, the basic unit of life. So it's the least complex.

Step2: Next level (tissue)

Epithelial tissue is a group of similar cells (like cuboidal cells) working together. So it comes after the cell.

Step3: Organ level

The kidney is an organ, made of multiple tissues (including epithelial tissue) working together. So it comes after tissue.

Step4: Most complex (organ system)

The urinary system is an organ system, made of multiple organs (like kidneys) working together. So it's the most complex.

Answer:

From least to most complex: Cuboidal cell, Epithelial tissue, Kidney, Urinary system