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algae    音标拼音: ['ældʒi]
n. 藻类,海藻

藻类,海藻

algae
n 1: primitive chlorophyll-containing mainly aquatic eukaryotic
organisms lacking true stems and roots and leaves [synonym:
{alga}, {algae}]

algae \algae\ n.
plural of {alga}.
[WordNet 1.5]


Alga \Al"ga\, n.; pl. {Alg[ae]} or {algae}. [L., seaweed.]
(Bot.)
A kind of seaweed; pl. the class of cellular cryptogamic
plants which includes the black, red, and green seaweeds, as
kelp, dulse, sea lettuce, also marine and fresh water
conferv[ae], etc. The algae are primitive
chlorophyll-containing mainly aquatic eukaryotic organisms
lacking true stems and roots and leaves.
[1913 Webster WordNet 1.5]


Cryptogamia \Cryp`to*ga"mi*a\ (kr?p`t?-g?"m?-?), n.; pl.
{Cryptogami[ae]} (-?). [NL., fr. Gr. krypto`s hidden, secret
ga`mos marriage.] (Bot.)
The series or division of flowerless plants, or those never
having true stamens and pistils, but propagated by spores of
various kinds.
[1913 Webster]

Note: The subdivisions have been variously arranged. The
following arrangement recognizes four classes: -- I.
{{Pteridophyta}, or {Vascular Acrogens}.} These include
Ferns, {Equiseta} or Scouring rushes, {Lycopodiace[ae]}
or Club mosses, {Selaginelle[ae]}, and several other
smaller orders. Here belonged also the extinct coal
plants called {Lepidodendron}, {Sigillaria}, and
{Calamites}. II. {{Bryophita}, or {Cellular Acrogens}}.
These include {Musci}, or Mosses, {Hepatic[ae]}, or
Scale mosses and Liverworts, and possibly
{Charace[ae]}, the Stoneworts. III. {{Alg[ae]}}, which
are divided into {Floride[ae]}, the Red Seaweeds, and
the orders {Dictyote[ae]}, {Oospore[ae]},
{Zoospore[ae]}, {Conjugat[ae]}, {Diatomace[ae]}, and
{Cryptophyce[ae]}. IV. {{Fungi}}. The molds, mildews,
mushrooms, puffballs, etc., which are variously grouped
into several subclasses and many orders. The {Lichenes}
or Lichens are now considered to be of a mixed nature,
each plant partly a Fungus and partly an Alga.
[1913 Webster] Cryptogamic
Cryptogamian


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  • Algae | Definition, Characteristics, Classification, Examples, Facts . . .
    Algae are defined as a group of predominantly aquatic, photosynthetic, and nucleus-bearing organisms that lack the true roots, stems, leaves, and specialized multicellular reproductive structures of plants
  • Algae - Definition, Examples, Characteristics
    Learn about algae in biology Get examples and discover their definition, classification, characteristics, and importance
  • What Are Algae? - Live Science
    Algae are a diverse group of aquatic organisms that have the ability to conduct photosynthesis Certain algae are familiar to most people; for instance, seaweeds (such as kelp or phytoplankton),
  • Algae: Definition, Types, Characteristics Amp; Reproduction
    Algae are a type of aquatic plant that contains chlorophyll and can carry out photosynthesis They are similar to plants in that they are autotrophs, but they are not structurally similar to plants in their external appearance Algae can be classified as red algae, green algae, or brown algae
  • What are Algae? - BYJUS
    “Alga is a term that describes a large and incredibly diverse group of eukaryotic, photosynthetic lifeforms These organisms do not share a common ancestor and hence, are not related to each other (polyphyletic) ” Multicellular examples of algae include the giant kelp and brown algae
  • Algae - Definition and Examples - Biology Online Dictionary
    Algae are photosynthetic organisms that possess photosynthetic pigments such as chlorophyll However, they lack true roots, stems, and leaves characteristic of vascular plants Some of them are unicellular whereas others are multicellular They may also form colonies Most algae are aquatic
  • Algae - Definition, Characteristics, Types and Examples
    Algae are a diverse group of eukaryotic chlorophyll-containing, simple, thalloid, photosynthetic, aquatic plants They lack roots, stems, leaves, and vascular tissues, which allow vital nutrients and water to circulate throughout their bodies They are found in moist stones, soils, and wood, as well as in the presence of fungi and animals They are classified into various types green, red, and
  • What is Algae? Characteristics and Occurrence of Algae.
    What is Alage? In 1753 Linnaeus first, introduce the term Algae, it is a Latin word (seaweeds) which means the Hepaticae Algae are the most prominent group of Thallophyta which is the primitive and most simplistic division of the plant kingdom Where Thallos means a sprout and phyton means a plant
  • Algae | Botany Basics - Biology Dictionary
    Algae is a term used to describe a large, diverse group of eukaryotic, photosynthetic organisms Algae can be unicellular, live in colonies, or even be multicellular
  • Algae
    Algae are a diverse set of organisms that can be found just about anywhere around the globe, from the artic circle to the underwater volcanic vents These organisms conduct photosynthesis but do not have roots or leaves





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