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  • Diatoms - Encyclopedia. com
    Diatoms Algae are a very diverse group of simple, nucleated, plant-like aquatic organisms that are primary producers Primary producers are able to utilize photosynthesis to create organic molecules from sunlight, water , and carbon dioxide Ecologically vital, algae account for roughly half of photosynthetic production of organic material on earth in both freshwater and marine environments
  • Diatom | Encyclopedia. com
    diatom A microscopic alga, belonging to the division Bacillariophyta, in which the cell wall (frustule) is composed of silica and consists of two halves, one of which overlaps the other like the lid of a box Frustules are often delicately ornamented Most diatoms are unicellular, but some are colonial or filamentous Most are photosynthetic, but some species lack chlorophyll and live
  • Bacillariophyta - Encyclopedia. com
    Bacillariophyta A phylum of algae comprising the diatoms These marine or freshwater unicellular organisms have cell walls (frustules) composed of pectin impregnated with silica and consisting of two halves, one overlapping the other Diatoms are found in huge numbers in plankton and are important in the food chains of seas and rivers
  • Dinoflagellata | Encyclopedia. com
    dinoflagellates A division (Dinoflagellata) of protists that are heterotrophs but closely allied to brown algae and diatoms (they are sometimes classified as algae) Many have brown or yellow chromoplasts containing xanthophyll and chlorophylls a and c; others are colourless Typically, dinoflagellates have two flagella, one propelling water to the rear and providing forward motion, attached
  • Chrysophyta - Encyclopedia. com
    Chrysophyta (krəsŏf´ətə), phylum (division) of unicellular marine or freshwater organisms of the kingdom Protista [1] consisting of the diatoms [2] (class Bacillariophyceae), the golden, or golden-brown, algae (class Chrysophyceae), and the yellow-green algae [3] (class Xanthophyceae)
  • Protista - Encyclopedia. com
    Protista (Protoctista) A kingdom in the domain Eucaryota that comprises single-celled, eukaryotic organisms (see eukaryote) that may resemble animals or plants Naked and shelled amoebas, foraminiferans, zooflagellates, ciliates, dinoflagellates, diatoms, and algae are protists In an earlier five-kingdom classification, Protista was ranked as a kingdom; later some multicellular organisms with
  • pennate diatom | Encyclopedia. com
    pennate diatom A diatom (Bacillariophyta) that has bilateral symmetry Some pennate diatoms are marine, others inhabit fresh water, some are planktonic (see PLANKTON), others live attached to a substrate Compare CENTRIC DIATOM
  • Protozoa - Encyclopedia. com
    The Amoeba, for example, is capable of detecting chemicals given off by potential food particles such as diatoms , algae, bacteria or other protozoa As the cell wall has no definite shape, the cytoplasm can extrude to form pseudopodia (Greek pseudes, "false"; pous, "foot") in various sizes and at any point of the cell surface
  • Decapoda (Crabs, Shrimps, and Lobsters) | Encyclopedia. com
    Decapoda (Crabs, shrimps, and lobsters) Phylum ArthropodaSubphylum CrustaceaClass MalacostracaOrder DecapodaNumber of families 151Thumbnail description Crustaceans with a large carapace covering the head and thorax and enveloping the gill chambers; also possess five pairs of legs Source for information on Decapoda (Crabs, Shrimps, and Lobsters): Grzimek's Animal Life Encyclopedia dictionary
  • Calcium Silicate - Encyclopedia. com
    The usual method of preparation involves the addition of lime (calcium oxide; CaO) to diatomaceous earth, a material consisting of the fossil remains of single-celled algae known as diatoms The lime provides the calcium and the diatomaceous earth provides the silicon dioxide (SiO 2) required to make calcium silicate





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