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Protozoa. 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".
Medication. Paracetamol (acetaminophen), ibuprofen [ 6 ] Frequency. 3.6 billion (2016) [ 7 ] Tooth decay, also known as cavities or caries, [ a ] is the breakdown of teeth due to acids produced by bacteria. [ 6 ] The cavities may be a number of different colors, from yellow to black. [ 1 ]
Germ-free animal. Germ-free mice are frequently used in scientific research. Germ-free organisms are multi-cellular organisms that have no microorganisms living in or on them. Such organisms are raised using various methods to control their exposure to viral, bacterial or parasitic agents. [1] When known microbiota are introduced to a germ-free ...
20 genius uses for hand sanitizer you'll wish you knew before. Lauren Cahn. April 27, 2019 at 3:21 PM. This gel can come in handy during cold and flu season and in extremely germy situations like ...
This germ-free Halloween activity requires two things: string and donuts. From there, all you have to do is hang donuts from tree branches and invite your kids to eat theirs hands-free. (Yep ...
The eradication of infectious diseases is the reduction of the prevalence of an infectious disease in the global host population to zero. [ 1 ] Two infectious diseases have successfully been eradicated: smallpox in humans, and rinderpest in ruminants. There are four ongoing programs, targeting the human diseases poliomyelitis (polio), yaws ...
Purple bacteria grown in Winogradsky column. Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis. [ 1 ] They are pigmented with bacteriochlorophyll a or b, together with various carotenoids, which give them colours ranging between purple ...
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