👉 Biology, at its core, studies the intricate processes and structures of living organisms, from the molecular level up to ecosystems. At the cellular level, cells are the fundamental units of life, each containing DNA that encodes genetic information and proteins essential for function. Cells communicate and interact through complex signaling pathways, and they specialize into tissues and organs, each performing specific roles in maintaining an organism's health and function. Genetic variation and evolution drive biodiversity, with natural selection favoring traits that enhance survival and reproduction. At the organismal level, biology examines how these cells and tissues work together to form systems like the nervous system, circulatory system, and immune response. Ecosystems are also a key focus, studying interactions between living organisms and their environments, including energy flow and nutrient cycling. This holistic approach helps scientists understand life's diversity and the delicate balance that sustains it.
