[Solved] To convert a decimal to a percent you: A) Move the decimal point two places to the left. B) Multiply by 100 and delete the percent symbol. C) Move the decimal point two places to the right and attach a percent symbol. D) Drop the decimal entirely. E) None of these. Zooxanthellae: Photosynthetic algae found in close symbiotic relationships with marine invertebrates such as corals and sea anemones. Microscopic Algae: Tiny, often unicellular algae, not visible to the naked eye, that live in water and can perform photosynthesis. Phytoplankton: Microscopic floating algae and cyanobacteria that are the base of most aquatic food webs. Compare with zooplankton. See plankton and nanoplankton. Classification: The systematic organization of living things into categories based on shared attributes or evolutionary ancestry.