* The structure, function, and behavior of living organisms: This includes everything from the smallest cell to the largest whale.
* The interactions between organisms and their environment: This includes ecosystems, populations, and the complex web of life.
* The origin and evolution of life: How did life arise, and how has it changed over time?
* The mechanisms of heredity and genetics: How are traits passed from one generation to the next?
* The causes and cures of diseases: What causes disease, and how can we prevent and treat it?
Essentially, any question about living things, from the microscopic to the global, can be tackled using the scientific method.
