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  1. Algae - Encyclopedia.com

    Jun 11, 2018 · Algae Algae (singular: alga) are photosynthetic, eukaryotic organisms that do not develop multicellular sex organs. Algae can be unicellular, or they may be large, multicellular …

  2. Green Algae | Encyclopedia.com

    May 11, 2018 · green algae Large group of marine and freshwater algae (phylum Chlorophyta). They are distinct from other algae by virtue of possessing cup-shaped chloroplasts that …

  3. Cyanobacteria - Encyclopedia.com

    Jun 27, 2018 · Cyanobacteria Cyanobacteria are a morphologically diverse group of photosynthetic prokaryotic microorganisms that form a closely related phylogenetic lineage of …

  4. Evolution of Plants - Encyclopedia.com

    May 18, 2018 · Evolution of Plants Plants, descended from aquatic green algal ancestors, first appeared on land more than 450 million years ago during or prior to the Ordovician period. …

  5. Euglenophyta - Encyclopedia.com

    May 29, 2018 · Euglenophyta A division of typically unicellular protists, sometimes regarded as algae, sometimes as protozoa (class Phytomastigophora). They are characterized by the …

  6. Protista - Encyclopedia.com

    Jun 27, 2018 · Protista Background Classification Protozoa Algae Slime molds and water molds Disease-causing protists Beneficial protists Resources The kingdom Protista is the most …

  7. Diatoms - Encyclopedia.com

    May 23, 2018 · 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 …

  8. Yellow-green Algae | Encyclopedia.com

    May 11, 2018 · Xanthophyta (green algae) A division of algae in which the chloroplasts are yellow-green and which form motile cells with 1 long, forward-directed tinsel flagellum and 1 …

  9. Blue-Green Algae - Encyclopedia.com

    May 23, 2018 · Blue- green algae Blue- green algae are actually a type of bacteria that is known as cyanobacteria. In their aquatic habitat, cyanobacteria are equipped to use the sun's energy …

  10. Rhodophyta - Encyclopedia.com

    Jun 27, 2018 · Rhodophyta (red algae) A group of Eukarya which are mostly red in colour; no flagellated cells are formed, and the storage product is a type of starch known as floridean …