Cells, ecosystems, and the science of life.
6 quizzesBiology is the science of life in all its staggering diversity — from the molecular machinery inside a single cell to the dynamics of entire ecosystems spanning continents and oceans. At its core, biology asks: What is life? How does it work? How did it arise, and how does it continue to evolve?
The discovery of the DNA double helix in 1953 revolutionized biology, revealing that all living things share a common chemical language written in four letters. Since then, advances in genetics, cell biology, microbiology, and evolutionary theory have transformed medicine, agriculture, and our understanding of what it means to be alive. The human body alone contains around 37 trillion cells, each following a genetic program encoded across 3 billion base pairs.
Whether you're fascinated by the inner workings of photosynthesis, the complexity of the immune system, the classification of species, or the mechanisms of natural selection, biology offers endless depth and wonder. How deeply do you understand the living world that surrounds — and constitutes — you?
