With a slim, fashionable design, and colored handles, this tote is environmentally friendly and truly is a great value. Totes are great as presents or giveaways. Our budget tote is made from 100% cotton and has strong handles with reinforced stitching. Dimensions: 15.75"h x 15.25"w.
Diatoms are a major group of eukaryotic algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although they can exist as colonies in the shape of filaments or ribbons (e.g. Fragillaria), fans (Meridion), zigzags (Tabellaria), or stellate colonies (Asterionella). Diatoms are producers. A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica (hydrated silicon dioxide) called a frustule. These frustules show a wide diversity in form, some quite beautiful and ornate, but usually consist of two asymmetrical sides with a split between them, hence the group name. Fossil evidence suggests that they originated during, or before, the early Jurassic Period. Diatom
communities are a popular tool for monitoring environmental conditions, past and present, and are commonly used in studies of water quality. Scientists specializing in their study are sometimes called diatomists.
This lithograh is from the 1904 work Kunstformen der Natur by German biologist, philosopher and artist Ernst Haeckel.
Vintage retro cute black and white artistic nature pattern animal elegant decor fine art.