Biologists investigate the structure, physiology, genetics, evolution, and interactions of living organisms using laboratory experiments, microscopy, molecular tools, field studies, and computational analyses. They contribute to research in health, agriculture, ecology, biotechnology, and environmental management. Work involves designing experiments, analysing biological data, interpreting results, and communicating scientific findings. Biologists are employed in research institutes, universities, biotech firms, environmental agencies, and healthcare labs. Increasing global focus on biotechnology, genomics, health innovation, and biodiversity conservation sustains strong demand for biological scientists.