Diatom | Description, Characteristics, & Reproduction
网页2024年8月29日 · Diatoms are among the most important and prolific microscopic sea organisms and serve directly or indirectly as food for many animals. Diatomaceous earth, a substance composed of fossil diatoms, is used in filters, insulation, abrasives, paints, and varnishes and as a base in dynamite.
Properties, Formation, Compositions, Uses - Geology Science
网页2023年11月24日 · Diatoms are a type of algae that extract silica from water to build their cell walls, and when they die, their silica-rich shells accumulate on the ocean floor or in freshwater bodies, eventually forming diatomite deposits.
Diatom - Definition, Reproduction and Location - Biology Dictionary
网页2018年1月21日 · Diatoms are a common type of unicellular phytoplankton that likely originated around the Jurassic period. Diatoms can form colonies characterized by particular shapes (e.g., stars, fans, and ribbons) and are encapsulated by a unique cell wall composed of silica, termed a frustule.
Diatom - Wikipedia
网页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.
What are Diatoms? - Diatoms of North America
网页Diatoms are single-celled algae. Diatoms are algae that live in houses made of glass. They are the only organism on the planet with cell walls composed of transparent, opaline silica. Diatom cell walls are ornamented by intricate and striking patterns of silica.
Diatom - Definition and Examples - Biology Online Dictionary
网页2022年6月24日 · Diatom Definition. A diatom is a unicellular eukaryotic alga characterized by having a siliceous covering and a symmetrical body. Diatoms are mostly aquatic, being found in fresh, brackish, and saltwater. Some are found in moist places, such as soil. Diatoms comprise the taxonomic phylum Bacillariophyta.
4.4: Diatoms - Biology LibreTexts
网页Diatoms are an incredibly diverse group of unicellular organisms containing anywhere from 20,000 to 2 million species. These organisms are unicellular and surrounded by a frustule , a silica shell made from two distinct valves that enclose the plasma membrane.
Diatoms Under the Microscope Classification and Characteristics
网页Diatoms are photosynthetic organisms referred to as algae with a length/diameter of between 2 and 500 microns. They have a transparent cell wall (frustule) made of silicon dioxide, which is itself hydrated with a little amount of water.
Diatom - an overview | ScienceDirect Topics
网页Diatoms are photosynthetic unicellular eukaryotic microorganisms of the class Bacillariophyta. They are the most prevalent eukaryotes in the aquatic ecosystem with a very fast growth rate.
Diatom - Wikiwand
网页A diatom is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world.
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