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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 organisms. …

  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 contain chlorophyll …

  3. Cyanobacteria - Encyclopedia.com

    Jun 27, 2018 · Cyanobacteria Cyanobacteria (blue-green algae [1]) are microorganisms that structurally resemble bacteria (they lack a nucleus and organelles ). However, unlike other bacteria, …

  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. This event …

  5. 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 diverse of …

  6. Amoeba - Encyclopedia.com

    May 29, 2018 · The amoeba mainly eats bacteria, algae, and other protozoans. Any waste that remains after the food is digested is released from a contractile vacuole (one that can open and close). Water …

  7. Protists - Encyclopedia.com

    Some species of brown algae have an air bladder to keep the thallus floating at the surface of the water, where more light is available for photosynthesis. Brown algae store their energy as laminarin, a …

  8. Photosynthesis - Encyclopedia.com

    Jun 27, 2018 · Photosynthesis Photosynthesis is the biological conversion of light energy into chemical energy. This occurs in green plants, algae, and photosynthetic bacteria .

  9. Mushroom | Encyclopedia.com

    May 21, 2018 · Mushrooms Mushrooms are the fruiting bodies of certain species of higher fungi . The vegetative tissues of these fungi consists of immense lengths of microscopic, thread-like hyphae, …

  10. Protozoa - Encyclopedia.com

    May 21, 2018 · Further complicating a precise definition of protozoa is the close relationship between some protozoa and unicellular algae. Modern taxonomic treatments recognize these similarities and …