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  • The art of identifying distinctions among organisms and placing them into groups that reflect their most significant features and relationships is called biological classification.
  • Carolus Linnaeus the Swedish Naturalist in 1758 postulated the “Two kingdom system of classification”.
  • A scientific name consists of two parts - the first part is the generic name and the second is the specific name. The generic name is always followed by the specific name.
  • Most bacteria fall under one of the four basic shapes they are spherical (coccus), rod (bacillus), comma (vibrium) and spiral (spirillum).
  • Archaebacteria were seen as extremophiles that lived in harsh environments, such as hot springs (thermoacidophiles), salt - tolerant habitats (the halophiles) and in marshlands (methanogens).
  • Diatoms are a major group of chrysophytes (eukaryotic algae) and are one of the most common types of phytoplankton. Fossilized remains of diatoms over a billion of years forms as Diatomaceous earth.
  • Bacteria are vital in recycling nutrients, with many important steps in nutrient cycles depending on these organisms, such as the fixation of nitrogen from the atmosphere (e.g.: Rhizobium) and putrefaction.
  • Red tide is more specifically produced when dinoflagellates are able to reproduce rapidly and copiously on account of the abundant nutrients in the water.
  • A fungus is a eukaryotic and heterotrophic organism possessing a chitinous cell wall.
  • Ascomycota is commonly known as the Sac Fungi.
  • Deuteromycetes are commonly called fungi imperfecti, or imperfect fungi.
  • Many fungal species have long been used as a direct source of food, such as mushrooms and truffles and in fermentation of various food products, such as wine, beer, and soya sauce.
  • The vast majority of the plant kingdom is vascular, with tubular, water-conducting cells called xylem tissue.
  • Lichens are symbiotic associations of a fungus (the mycobiont) with a algae (the phycobiont) that can produce food for the lichen from sunlight.
  • Lichens are named based on the fungal component, which play the primary role in determining the form of the lichen.

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