Acoral reef ecosystem might include all of the following organisms: phytoplankton, clams, octopus, moray eel and barracuda. the following shows a basic food chain of these organisms:
basic food chain
in this food chain, which organism would be the primary producer?

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.