<span>Photosynthesis is important to living organisms because it is the foundation of most food chains. Photosynthesis is the process in which plants use the energy of Sunlight to convert carbon dioxide and water into sugar and oxygen. In food chains, plants are producers because they produce their own food so they are the foundation of most food chains. Since plants are the biggest group of organisms that perform photosynthesis, photosynthesis is important to living organisms because it is the foundation of most food chains.</span>
"Crepuscular" means active at dawn and dusk, so if you wanted to avoid coming across the Gila monster when hiking in Arizona you would want to avoid dawn and dusk.