Biology is the scientific study of life and living organisms. It explores how organisms grow, function, evolve, and interact with their environments. Key branches include:
Genetics – the study of heredity and DNA
Botany – the study of plants
Zoology – the study of animals
Physiology – how organisms' bodies work
Ecology – how organisms relate to each other and their surroundings
Biology helps us understand everything from microscopic cells to complex ecosystems.