Which pair of organisms below represents the flow of energy from a terrestrial to an aquatic ecosystem? 1.fly to frog
2.mouse to hawk
3.garter snake to eagle
4. pondweed to snail
please don’t guesss 44 points

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.