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 …

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 b, …

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 …

Jun 27, 2018 · Cryptomonads for instance, are considered red-brownish algae of Cryptomonadida Order by botanists, and protozoans of Cryptophycea Class by zoologists. This controversy is …

May 11, 2018 · Xanthophyta (yellow- 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 …

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

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. …

Jun 11, 2018 · dinoflagellates A division (Dinoflagellata) of protists that are heterotrophs but closely allied to brown algae and diatoms (they are sometimes classified as algae). Many have …

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 …

May 17, 2018 · coenobium (pl. coenobia) A loose association of unicellular organisms that live in a colony and may be surrounded by a common membrane. Often the cells are held together in …