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 Jesus do? expression has become a snowclone, sometimes for humorous effect. For example, "What Would Jesus Buy?", "What Would Lincoln Do?", "What Would Brian Boitano Do?", "What Would Mary Marvel Do?", "What Would Johnny Cash Do?", and "What would Tintin do?". The term "What Would Jesus Do?" or "WWJD" is also perceived as a fundamental management and leadership principle given Jesus' methodology of going to the marketplace to preach and lead by example. In modern management principles, more academic and professional references are going to the gemba or Management by Walking Around. What would Jesus do? The phrase "What would Jesus do?"