Question

organisms may contain up to five levels of organization within their bodies. which level of organization is best represented by the liver?
tissue
organ
organism
organ system

Explanation:

The liver is made up of different types of tissues working together to perform specific functions. In the biological levels of organization, an organ is a structure composed of different tissues that carry out a particular task. The liver fits this definition. Tissues are groups of similar cells, an organism is a whole living being, and an organ - system is a group of organs working together.

Answer:

organ