Biology is a key subject for lots of STEM careers, particularly in healthcare, medicine and jobs involving plants or animals. The list also includes: nursing, dentistry, forensic science, psychology, physiotherapy, botany, environmental science, zoology, geology, oceanography, pharmaceuticals, energy, teaching, science writing, genetics and research.
Biology is usually required or recommended for degrees in: biochemistry, chemical engineering, chemistry, geology, environmental science, materials science, nursing and midwifery, occupational therapy, optometry, pharmacy, sports science, psychology and speech therapy.
It is also useful for: anthropology, psychology, civil engineering, geography, and teaching.