In 250 words, explain the dependency between autotrophs and heterotrophs. Use specific examples of autotrophs and heterotrophs in your discussion. Describe the stages and steps followed, starting as a ray of light (photons) falling upon an autotroph, and ending with the energy molecules (ATP) produced in your cells. Be sure to identify the reactants and products of each stage. (You will need to refer back to the lesson on Photosynthesis as your answer will start with photosynthesis, and end with the last stages of cellular respiration.)