A wildlife surveyor is short-sighted and has colour blindness. Her work includes observing distant birds and recording the colours of their feathers.
Explain how each defect may affect the observations she makes and what can be done about each defect.
102 exam-style questions on Edexcel GCSE Biology 2.4 The eye, covering 2.4.1 Structure and function of the eye and 2.4.2 Eye defects and their correction. Each one has a worked solution and a mark scheme showing where the marks go.