Patients are told to complete the full course of antibiotics, even if they feel better. Which statement explains how this reduces the development of resistant strains of bacteria?
It makes sure that the patient produces antibodies against the bacteria.
It stops the bacteria from mutating while the patient is still unwell.
It kills the less sensitive bacteria before they can survive and multiply.
It gives the bacteria enough time to become used to the antibiotic.
122 exam-style questions on OCR GCSE Biology 5.2 Natural selection and evolution, covering 5.2.1 Genetic variation within a population, 5.2.2 Developments in classification systems, 5.2.3 How evolution occurs through natural selection, 5.2.4 Evolution as change over time, 5.2.5 Evidence for evolution, and 5.2.6 Darwin and Wallace. Each one has a worked solution and a mark scheme showing where the marks go.