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diatom    
n. 矽藻类

矽藻类

diatom
n 1: microscopic unicellular marine or freshwater colonial alga
having cell walls impregnated with silica


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  • Diatom - Wikipedia
    A diatom (Neo-Latin diatoma) [a] is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world Living diatoms make up a significant portion of Earth's biomass
  • Diatom | Description, Characteristics, Reproduction . . .
    diatom, (class Bacillariophyceae), any member of the algal class Bacillariophyceae (division Chromophyta), with about 16,000 species found in sediments or attached to solid substances in all the waters of Earth
  • What are Diatoms? - Diatoms of North America
    Diatoms are the most diverse protists on earth Diatoms are eukaryotes, one of the Heterokont algae Estimates of the number of diatom species range from 20,000 - 2 million Scientists are discovering new species every year
  • Diatoms – Definition, Structure, Life Cycle, Importance
    A diatom is a tiny, single-celled algae with a hard shell made of silica, found in oceans, waterways, and soil They play a crucial role in oxygen production, nutrient cycling, and the food web of aquatic ecosystems
  • Diatoms - Jewels Of The Sea ~ MarineBio Conservation Society
    Diatoms are unicellular organisms within the phylum Bacillariophyta, characterized by a bipartite silica shell called a frustule They possess chloroplasts containing chlorophylls a and c, enabling oxygenic photosynthesis akin to higher plants
  • Diatoms | Animals | Monterey Bay Aquarium
    Diatoms, one of the largest groups of organisms on Earth, are unicellular algae Scientists estimate there could be as many as 2 million species of diatoms — new species are discovered every year Diatoms can be solitary or live in colonies that might be shaped like long chains, stars or zigzags
  • DiatomBase
    Diatoms are found in marine, estuarine and freshwater ecosystems, inhabiting a wide range of environmental conditions Because they are found in almost any place that has, or has had, water, and due to their efficient photosynthetic processes, they are important players in the global cycling of carbon and oxygen
  • IDENTIFICATION GUIDE: fact sheet - NC Dept. of Environmental . . .
    iophyceae (diatoms) Description: Diatoms are microscopic, unicellular organisms that have a c ll wall made of silicon dioxide For this reason, they are sa d to live in “glass houses ” There a e thousands of types of diatoms They exist in two general shapes: cigar or pen-shaped (called pennate) and disk drum-shaped
  • The Life Cycle of Diatoms Explained - Live to Plant
    Diatoms are unicellular eukaryotic organisms characterized by their distinctive cell wall composed of silica (SiO2), which forms intricate and beautiful patterns known as frustules These frustules can be viewed under a microscope, revealing an array of shapes and designs that vary among species
  • Diatom - Simple English Wikipedia, the free encyclopedia
    Diatoms are a type of algae (tiny plant-like living things often found in water) Most are single cells, but some form chains or simple colonies They usually live in the ocean, but are also found in some soils and waterways Diatom cells have unique cell walls made of silica (SiO 2)





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