A change in the percent of different genetic traits over generations. You can measure evolution in nature, in the lab, on the farm.
Evolution is a major and important part of biology and has been extremely well-tested and supported.
Understanding evolution has important practical applications, e.g., medicine, agriculture, biotechnology, conservation c. What is taught in science classes should NOT be decided by 1 small religous group 6. Requiring teaching of evolution does NOT violate freedom of religion. Prohibiting the teaching of creation science does NOT violate free speech. Voices for Evolution.