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  2. List of pathogens by size - Wikipedia

    en.wikipedia.org/wiki/List_of_pathogens_by_size

    Common name Dimension Size Reference Flatworm animal: Eucestoda: Tapeworm: length (maximum) 25 m: Eucestoda: Nematode animal: Loa loa: Loa loa: length (female) 20–70 mm: Loa loa: Arthropod animal: Cymothoa exigua: Tongue-eating louse: length (female) 8–29 mm: Cymothoa exigua: Nematode animal: Enterobius: Pinworm: length (female) 8–13 mm ...

  3. Microfauna - Wikipedia

    en.wikipedia.org/wiki/Microfauna

    Microfauna (from Ancient Greek mikros 'small' and from Latin fauna 'animal') refers to microscopic animals and organisms that exhibit animal-like qualities, and have body sizes that are usually <0.1mm. [1] [2] Microfauna are represented in the animal kingdom (e.g. nematodes, small arthropods) and the protist kingdom (i.e. protozoans). A large ...

  4. Microorganism - Wikipedia

    en.wikipedia.org/wiki/Microorganism

    Only now are scientists beginning to realize how common archaea are in the environment, with Thermoproteota (formerly Crenarchaeota) being the most common form of life in the ocean, dominating ecosystems below 150 metres (490 ft) in depth. [45] [46] These organisms are also common in soil and play a vital role in ammonia oxidation. [47]

  5. Smallest organisms - Wikipedia

    en.wikipedia.org/wiki/Smallest_organisms

    With a size of approximately 200 to 300 nm, M. genitalium is an ultramicrobacterium, smaller than other small bacteria, including rickettsia and chlamydia. However, the vast majority of bacterial strains have not been studied, and the marine ultramicrobacterium Sphingomonas sp. strain RB2256 is reported to have passed through a 220 nm (0.00022 ...

  6. List of human microbiota - Wikipedia

    en.wikipedia.org/wiki/List_of_human_microbiota

    The oral microbiota consists of all the microorganisms that exist in the mouth. It is the second largest of the human body and made of various bacteria, viruses, fungi and protozoa. [14] These organisms play an important role in oral and overall health. Anthony Van Leeuwenhoek was the first to view these organisms using a microscope he created ...

  7. File:Bacterial morphology diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Bacterial_morphology...

    Original file (SVG file, nominally 825 × 762 pixels, file size: 509 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  8. Bacterial taxonomy - Wikipedia

    en.wikipedia.org/wiki/Bacterial_taxonomy

    Bacteria (prokaryotes, together with Archaea) share many common features. These commonalities include the lack of a nuclear membrane, unicellularity, division by binary-fission and generally small size. The various species can be differentiated through the comparison of several characteristics, allowing their identification and classification.

  9. Marine microorganisms - Wikipedia

    en.wikipedia.org/wiki/Marine_microorganisms

    Microorganisms make up about 70% of the marine biomass. [4] A microorganism, or microbe, is a microscopic organism too small to be recognised adequately with the naked eye. In practice, that includes organisms smaller than about 0.1 mm. [12]: 13