Plant cells a. have chloroplasts and mitochondria b. do not need mitochondria because their chloroplasts meet their energy needs c. do not need chloroplasts because their mitochondria meet their energy needs d. use carbon dioxide but do not use oxygen

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.