[ 261 ] Life Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Artificial selection is the process of breeding plants or animals to increase the occurrence of desired traits. Farmers use artificial selection to produce new crop species from existing plant species. The diagram illustrates six crop species that have been derived from the common wild mustard plant. Cabbage Caulifower Broccoli Brussels sprouts Selection for fower clusters Selection for terminal bud Kale Selection for Kohlrabi stems and fowers Selection for lateral buds Selection Selection for for leaves stem Brassica oleracea (a common wild mustard) Based on the information in the passage, how did farmers produce kale? A. Farmers removed the stems and flowers from mustard plants as they grew. B. Farmers allowed only wild mustard plants with large leaves to reproduce. C. Farmers bred small-leafed plants with large-leafed plants to increase leaf size. D. Farmers prevented wild mustard plants with large leaves from reproducing.