How does the rat anatomy serve as a good model for understanding human anatomy ?

50 on a scale of one to ten, how cute is this dog? (for a science project i need data)

What are the main functions of the human skeleton? a exchange of gases b support and movement c sensing the environment d digestion and excretion

Which group’s rights—human participants or nonhuman animals—are the most important to protect? why? not really a right or wrong answer, but give a detailed explanation