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:

To determine the level of organization the liver represents, we recall the biological levels of organization: cells → tissues → organs → organ systems → organisms. A tissue is a group of similar cells. An organ is a structure made of different tissues working together. The liver is made of multiple tissue types (e.g., epithelial, connective) and performs a specific function, so it is an organ. An organism is the whole living thing, and an organ system is a group of organs (like the digestive system). So the liver is an organ.

Answer:

B. organ