007014 01 Nature Microbe Bacteria Alga Algae America American Artifact Building Buildings Cambridge Characteristic Color Colour Concept Diatom Diatoma Diatoms Earth Evolution Farlow Herbarium Flora Fossil Freshwater Algae Harvard Harvard University Lab Laboratory Lavendar Lavender Location Marine Algae Massachusetts Microbe Microbes Microscopic Mineral Nature North America North American Object Organism Pattern Patterns Physical Matter Plant Plants Plantae Shape Shapes Silica Silicon Silicon Dioxide Specimen Structure Subject Substance Unicellular United States US USA Vegetation Frans Lanting Frans Lanting Frans Lanting Ph MIC 011 © Frans Lanting Frans Lanting Photography Diatoms Farlow Herbarium Harvard University