The liver is best represented by the organ level of organization, as it is composed of various tissues working together to perform specific functions. Understanding the levels of organization is crucial in biology since it highlights how complex structures are formed from simpler components. The liver exemplifies how distinct tissues come together to create an organ that performs vital tasks for the body. ;
The liver is best classified as an organ, as it is made up of various tissues working together to perform specific functions in the body. This organ plays critical roles such as detoxifying substances and producing proteins. Therefore, the correct answer to the question is Option B: organ.
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