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  • Algae - Encyclopedia. com
    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 Algae can occur in salt or fresh waters, or on the surfaces of moist soil or rocks The multicellular algae develop specialized tissues, but they lack the true stems, leaves, or roots of the more complex
  • Green Algae | Encyclopedia. com
    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, and by producing cells with flagella at some stage in their lives Green algae range in size from microscopic single-cell types to large, complex seaweeds
  • Dinoflagellata | Encyclopedia. com
    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 brown or yellow chromoplasts containing xanthophyll and chlorophylls a and c; others are colourless Typically, dinoflagellates have two flagella, one propelling water to the rear and providing forward motion, attached
  • 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 carbohydrate The phylum Chlorophyta is known as the green algae This phylum is the most diverse of all the algae, with greater than 7,000
  • Evolution of Plants - Encyclopedia. com
    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 preceded the colonization of land by four-footed animals (tetrapods), which occurred considerably later in the Devonian period (408 to 360 million years ago) Understanding the origin of plants is important because
  • Prokaryotae - Encyclopedia. com
    Prokaryotae Prokaryote is a kingdom, or division, in the classification scheme devised for all life on Earth This kingdom, which is also designated as Monera, includes all bacteria and blue-green algae (which are also called Cyanobacteria) There are four other kingdoms in the classification system Source for information on Prokaryotae: World of Microbiology and Immunology dictionary
  • Pyrrophyta - Encyclopedia. com
    Cryptomonads for instance, are considered red-brownish algae of Cryptomonadida Order by botanists, and protozoans of Cryptophycea Class by zoologists This controversy is due to the unusual characteristics of these two phyla, sharing features with both plants and animals
  • Tardigrada (Water Bears) - Encyclopedia. com
    Tardigrada (Water bears) Phylum TardigradaNumber of families 20Thumbnail description Microscopic, aquatic, multicellular, segmental animals with four pairs of legs Source for information on Tardigrada (Water Bears): Grzimek's Animal Life Encyclopedia dictionary
  • Plant Pigment - Encyclopedia. com
    Chlorophylls occur in plants, algae, and photosynthetic bacteria In plants and algae, they are located in the inner membranes of chloroplasts, organelles (membrane enclosed structures) within plant cells which perform photosynthesis Photosynthesis uses the light energy absorbed by chlorophylls to synthesize carbohydrates
  • Cyanobacteria - Encyclopedia. com
    Cyanobacteria Cyanobacteria (blue-green algae [1]) are microorganisms that structurally resemble bacteria (they lack a nucleus and organelles ) However, unlike other bacteria, cyanobacteria contain chlorophyll a and conduct oxygenic photosynthesis





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