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 Do I Have to Do Amazon.co.uk, "Her most outrageous but greatest video moment is where she parodies certain movie stars in the chic video for "What Do I Have to Do?", and because of her heavy eye make-up almost earns herself the title drag-queen Kylie (watch out for sister Dannii who briefly stars in the video, wearing a blonde wig)." These are the formats and track listings of major single releases of "What Do I Have to Do". Minogue performed the song on the following concert tours: The song was also performed on: What Do I Have to Do "What Do I Have to Do"