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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
  • Polyplacophora (Chitons) - Encyclopedia. com
    Feeds on crustose coralline algae (Lithothamnium), which it scrapes with its strong radula, consuming the more superficial layers and removing the film of diatoms and other small organisms coating the surface of this alga Species that feed on the lined chiton include the sea stars (Pisaster ochraceus and Leptasterias hexactis)
  • Microcoryphia (Bristletails) - Encyclopedia. com
    Grazes on algae, lichens, and mosses growing on rocks reproductive biology Fertilization approaches an internal mode The male and female elevate the tips of their abdomens and bring them into contact, aligning themselves at a 45° angle The male deposits a sperm droplet onto the ovipositor of the female Tactile contact is minimal
  • 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
  • Ferdinand Cohn and the Development of Modern Bacteriology
    Microbiology is the general study of bacteria and other microbes with a focus on their morphology and physiology Background The discipline of bacteriology originated with the recognition that bacteria are organisms in their own right—that they are different from algae, fungi, and other single-celled microorganisms
  • Heterotrophic Bacteria - Encyclopedia. com
    Heterotrophic bacteria Heterotrophic cells must ingest biomass to obtain their energy and nutrition In direct contrast, autotrophs are capable of assimilating diffuse, inorganic energy and materials, and using these to synthesize biochemicals Green plants, for example, use sunlight and simple inorganic molecules to photosynthesize organic matter Source for information on Heterotrophic
  • Bryophyte - Encyclopedia. com
    Bryophyte Bryophytes include the mosses, liverworts, and hornworts Bryophytes are the simplest of plants (excluding the algae , which are not considered plants by most botanists) Bryophytes are small, seldom exceeding 6-8 in (15-20 cm) in height, and usually much smaller They are attached to the substrate (ground, rock, or bark ) by rhizoids, which are one or a few-celled, root-like threads
  • Acoela (Acoels) - Encyclopedia. com
    Various acoel species feed on algae, microorganisms and detritus, ingesting food through a simple pharynx or even simpler mouth located on the ventral surface Some carry endosymbiotic algae within their epidermis and absorb nourishment manufactured by the algae
  • Loricifera (Girdle Wearers) - Encyclopedia. com
    Loricifera (Girdle wearers) Phylum LoriciferaNumber of families 2Thumbnail description Group of microscopic, bilateral symmetrical animals characterized by a body with five sections: a protrusive mouth cone; a head (introvert) with up to nine rows of scalids (in the adults); a neck with trichoscalids; a thorax; and an abdomen with a lorica consisting of plates or plicae (folds) Source for
  • 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





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