Welcome to the 21st Century electronic biology (life sciences) classroom of the future. You will be looking at the anatomy of the white rat. Believe it or not, the white rat is similar in composition to a human. It has the same circulatory system, similar muscles, and a similar skeletal structure. You have unlimited number of attempts for this laboratory practical to aid in learning and test-taking skills. Each attempt will randomize 20 different questions and associated answers.