1. Facts about brown algae:
    • They contain chlorophyll a and c, but their brown color is due to the pigment fucoxanthin.
    • Brown algae play a significant role in marine ecosystems as primary producers and habitats for various marine organisms.
    • Many species of brown algae have commercial uses, including alginate extraction for food thickening and medical applications.
    • They are predominantly marine, although there are a few freshwater species.
    • Brown algae are multicellular and their color varies from brown to olive green.
    • There are around 1500 species of brown algae.
    • They are in the kingdom Chromista12345.
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    Brown algae contain chlorophyll a and c, but their brown color is due to the pigment fucoxanthin. They play a significant role in marine ecosystems as primary producers and habitats for various marine organisms. Many species of brown algae have commercial uses, including alginate extraction for food thickening and medical applications.
    library.fiveable.me/key-terms/microbio/brown-algae
    Brown algae are predominantly marine, although there are a few freshwater species. They are eukaryotic and multicellular, distinguishing them from the blue-green algae, which are actually bacteria (cyanobacteria). The pigments fucoxanthin and chlorophyll a and c are responsible for the characteristic brownish color of these algae.
    theoceaninsider.com/seafood-guide/brown-algae-e…
    They are named due to their colour, which varies from brown to olive green. They are mostly found in marine environments. There are around 1500 species of brown algae, which vary greatly in their size and shape. They are multicellular and the colour depends on the ratio of chlorophyll and the pigment, fucoxanthin.
    Brown algae are the largest and most complex type of marine algae. They get their name from their brown, olive, or yellowish-brown color, which comes from the pigment called fucoxanthin. This pigment is not found in other algae or in plants such as red or green algae, and as a result, brown algae are in the kingdom Chromista.
    www.thoughtco.com/brown-algae-phaeophyta-229…
    Brown algae are a large group of algae. They are classified as heterokont protists because they are neither plant nor animal. All the brown algae are multicellular, composed of more than one cell. Most brown algae have fucoxanthin, a chemical that gives them a brown color. There are 2000 species of brown algae.
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    Brown algae - Wikipedia

    Brown algae (sg.: alga) are a large group of multicellular algae comprising the class Phaeophyceae. They include many seaweeds located in colder waters of the Northern Hemisphere. Brown algae are the major seaweeds of the temperate and polar regions. Many brown algae, such as members of the order … See more

    Brown algae exist in a wide range of sizes and forms. The smallest members of the group grow as tiny, feathery tufts of threadlike cells no more than a few centimeters (a few … See more

    Most brown algae, with the exception of the Fucales, perform sexual reproduction through sporic meiosis. Between generations, the algae go through separate See more

    Brown algae have adapted to a wide variety of marine ecological niches including the tidal splash zone, rock pools, the whole intertidal zone and relatively deep near shore … See more

    Brown algae include a number of edible seaweeds. All brown algae contain alginic acid (alginate) in their cell walls, which is extracted commercially and used as an industrial thickening … See more

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    Genetic and ultrastructural evidence place the Phaeophyceae among the heterokonts (Stramenopiles), a large assemblage of organisms that includes both photosynthetic members with plastids (such as the diatoms) as well as non-photosynthetic … See more

    Brown algae have a δ C value in the range of −30.0‰ to −10.5‰, in contrast with red algae and greens. This reflects their different metabolic … See more

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  4. Brown algae | Marine, Seaweed, Kelp | Britannica

    Brown algae, (class Phaeophyceae), class of about 1,500 species of algae in the division Chromophyta, common in cold waters along continental coasts. …

  5. Brown Algae: A Diverse Group
    Brown algae are a diverse group of marine and freshwater organisms that belong to the kingdom Chromista.
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  6. Seaweed, Kelp and Other Brown Algae (Phaeophyta)

    Jan 4, 2020 · Brown algae are the largest and most complex type of marine algae. They get their name from their brown, olive, or yellowish-brown color, which comes from the pigment called fucoxanthin. This pigment is not found in …

  7. Brown Algae or Phaeophyceae: Characteristics, …

    Sep 21, 2020 · Brown algae are a group of algae belonging to class Phaeophyceae. They are named due to their colour, which varies from brown to olive green. They are mostly found in marine environments. There are around …

  8. Phaeophyta (Brown Algae) - Characteristics, Occurrence, Thallus ...

  9. Kelp | Definition, Major Genera, & Facts | Britannica

    Oct 14, 2024 · kelp, (order Laminariales), any of about 30 genera of brown algae that grow as large coastal seaweeds in colder seas. Kelps provide critical habitat and are an important food source for a wide range of coastal organisms, …

  10. Brown algae facts for kids - Kids encyclopedia

    Sep 8, 2024 · Brown algae are a large group of algae. They are classified as heterokont protists because they are neither plant nor animal. All the brown algae are multicellular, composed of more than one cell. Most brown algae

  11. Algae | Definition, Characteristics, Classification, …

    5 days ago · Beginning in the 1830s, algae were classified into major groups based on colour—e.g., red, brown, and green. The colours are a reflection of different chloroplast pigments, such as chlorophylls, carotenoids, and …

  12. Three Types of Marine Algae (Seaweed) - ThoughtCo

    Nov 29, 2019 · Brown algae, from the phylum Phaeophyta (meaning "dusky plants"), is the most prevalent type of seaweed. Brown or yellow-brown in color, brown algae are found in the waters of both temperate or arctic climates.

  13. Phaeophyta (Brown Algae) - Biology Wise

    Phaeophyta or brown algae are a group of autotrophic, multicellular organisms, belonging to the class Phaeophyceae in the division Chromophyta. They contain the xanthophyll pigment – fucoxanthin, in addition to chlorophyll a and c. …