How could a biologist researching liver function in mice most likely contribute to medical advancements?

The genome of  mice is similar to that of human beings, therefore their physiological mechanism is similar to that of ours. Using mice for research purposes is beneficial because they are small and low maintenance, and unlike other animals they easily adapt. The physiological processes of mice such as reproduction are fast, therefore scientists will get results much faster.

Explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.