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
: The cell is the fundamental unit of all living things. Some organisms, like bacteria, consist of a single cell, while others, like humans, are made of trillions.
: 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
: 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.
