Which of the following is a key difference between natural selection and selective breeding?
Natural selection requires genetic variation within a population, whereas selective breeding works with genetically identical individuals.
Humans determine which individuals survive and reproduce in selective breeding, whereas environmental factors determine this in natural selection.
Selective breeding leads to evolutionary changes in population genotypes, whereas natural selection only affects phenotypes.
Natural selection occurs very rapidly over a few generations, whereas selective breeding always takes millions of years.
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.