The science of toxicology usually involves the study of poison, venom, acids, and other harmful substances. Students may be able to learn general biological and chemical principles while discovering how exposure to toxins can be prevented and treated.

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom and Britain, is a sovereign state located off the northwestern coast of continental Europe. The two most famous (and oldest) universities are Oxford and Cambridge (often referred to as Oxbridge by many Britons). England also has several other world-class institutions, including several in London (notably Imperial College, the London School of Economics, University College London and King's College London, all are part of London University).

Achieving high scores on A-levels is important for UK students who wish to enter university. Institutions of higher learning use the results of these exams to decide if a student is prepared to study at their program.