Seedbanks store seeds from a wide range of plants, including many different varieties of each species. How could storing many varieties of each species help in the future?
It means that fewer plant species will need to be classified.
It stops mutations from happening in wild populations of plants.
It allows new species to be made by mixing different seeds together.
It keeps alleles that may help crops survive future changes in climate.
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.