: Evolution explains both the unity and the incredible diversity of life on Earth. Through natural selection, organisms develop adaptations that improve their chances of survival and reproduction.
Despite its breadth, several unifying concepts govern all biological research: Biology
Biology is the scientific study of life, a vast field that explores everything from the microscopic molecules within our cells to the complex ecosystems that span the globe. It seeks to understand how living organisms function, evolve, and interact with one another and their environment. The Core Pillars of Life : Evolution explains both the unity and the
The field is categorized into numerous specialized disciplines, each focusing on different aspects of life: Why Study Biology & Why is Biology Important? It seeks to understand how living organisms function,
: Information is passed from one generation to the next through DNA and RNA. This universal genetic code acts as a blueprint for an organism's structure and function.
: All living things must capture and transform energy to survive—whether through photosynthesis in plants or consumption in animals. They must also maintain homeostasis , a stable internal environment despite external changes. Major Branches of Biology