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Protozoa ( sg.: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. [ 1][ 2] Historically, protozoans were regarded as "one-celled animals".
Bacterial cellular morphologies are the shapes that are characteristic of various types of bacteria and often key to their identification. Their direct examination under a light microscope enables the classification of these bacteria (and archaea ). Generally, the basic morphologies are spheres (coccus) and round-ended cylinders or rod shaped ...
Flatworm. The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") [ 4] are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Being acoelomates (having no body cavity ), and having no ...
Certificate – X, U, PG, R, G (from the film certificates) Charged – ION. Charlie – C ( NATO phonetic alphabet) Chartered accountant – CA. Chief – CH. Chlorine – CL (chemical symbol) Chromosome – X or Y. Church – CH or CE ( Church of England) or RC ( Roman Catholic) Circa – C.
Woodlouse. Woodlice are terrestrial isopods in the suborder Oniscidea. Their name is derived from being often found in old wood, [ 2] and from louse, a parasitic insect, [ 3] although woodlice are neither parasitic nor insects. Woodlice evolved from marine isopods which are presumed to have colonised land in the Carboniferous, though the oldest ...
"Know Your Snow": Nature Cat gets yet another challenge from MC Ferret, this time to build the world's tallest snow critter and to win a winter quiz contest with Ronald first. "Nature-tastic Four and the Humongous Hurricane": Squeeks tells another story about how the Nature-tastic Four help protect themselves and Ronald from a hurricane.
Microscopic colitis refers to two related medical conditions which cause diarrhea: collagenous colitis and lymphocytic colitis. [ 2 ] [ 3 ] Both conditions are characterized by the presence of chronic non-bloody watery diarrhea , normal appearances on colonoscopy and characteristic histopathology findings of inflammatory cells.
Gastrotricha (1 C, 59 P) L. ... Tardigrades (4 C, 12 P) Pages in category "Microscopic animals" The following 6 pages are in this category, out of 6 total.