The argument that each individual member of a species transforms itself to meet the challenges of a changed environment through the laws of use and disuse and inheritance of acquired characters was made primarily by

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.