By learning about evolution and natural selection, Cristina could begin to see the different evolutionary reasons behind the extreme features some animals have. For example, the aye-aye, a mammal native to Madagascar, has evolved to have an extra long middle finger, which it can use to dig grubs out of trees. We’ll learn more about how these types of traits are selected for in the module “Theory of Evolution.”

In order to understand potential risks of GMOs, Cristina will need to first understand the science behind these foods. How are GMOs created? We’ll learn more about this in the module “Modern Biology.”

In order to survive, humans require specific nutrients. While we won’t get into too much depth about nutrition in this course, we will learn about different biological macromolecules. These macromolecules include categories you may recognize, like proteins, lipids (more commonly called fats), and carbohydrates. In that module, we’ll learn about the roles these molecules play in our bodies—we’ll learn the essential functions they perform. With this knowledge, Cristina could better decide what she should or shouldn’t remove from her diet.