Evolution of photosynthesis era around 2 billion years ago. Modern photosynthesis in plants and most photosynthetic prokaryotes is oxygenic. Oxygenic photosynthesis uses water as an electron donor, which is oxidized to molecular oxygen () in the photosynthetic reaction center. Timeline of Photosynthesis on Earth Several groups of animals have formed symbiotic relationships with photosynthetic algae. These are most common in corals, sponges and sea anemones. It is presumed that this is due to the particularly simple body plans and large surface areas of these animals compared to their volumes. In addition, a few marine mollusks "Elysia viridis" and "Elysia chlorotica" also maintain a
What Would You Do? (City High song) from that included on the "Life" soundtrack as it features a sample of Dr. Dre's hit song, "The Next Episode". The song, along with the accompanying music video, is a motivational anthem for single parents dealing with poverty and especially acknowledging all the single mothers who feel forced into prostitution due to the need to support their children. It encourages them to keep strong, and keep going on for the sake of their loved ones, and passes no judgement on their profession. What Would You Do? (City High song) "What Would You Do?" is a song recorded by American R&B/hip