A Level Biology is a captivating subject area, the study of which will see you learn about the biological world and all the living things within it. Students enrol on A Level Biology for several reasons — It could be a requirement for a degree, or they have an interest in the human body, or in the natural world. The A Level Biology course explores biological molecules, genetic information, and energy transfers. You will go on to understand how this impacts on how organisms respond to their environment, genetic populations, and the control of gene expressions.