The document discusses the study of biology. It defines biology as the study of life and explains its importance in understanding ourselves, our environment, and finding cures for diseases. The document lists several fields of study within biology, including genetics, virology, ecology, botany, zoology and others. It also lists some careers related to biology, such as biotechnologist, biologist in agriculture/forestry, and biologist in marine/freshwater biology. The document then discusses the scientific investigation process in biology, including identifying problems, forming hypotheses, planning experiments, collecting and analyzing data, and drawing conclusions. It emphasizes the importance of conducting investigations systematically, objectively and with scientific integrity.