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  2. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Glycogen body. The function of this structure in the spinal cord of birds is not known. Arthropod head problem. A long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. Ovaries of basking sharks.

  3. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    Gram staining is a bacteriological laboratory technique [7] used to differentiate bacterial species into two large groups (gram-positive and gram-negative) based on the physical properties of their cell walls. [8][page needed] Gram staining can also be used to diagnose a fungal infection. [1]

  4. Robert Koch - Wikipedia

    en.wikipedia.org/wiki/Robert_Koch

    Robert Koch. Heinrich Hermann Robert Koch (/ kɒx / KOKH; [1][2] German: [ˈʁoːbɛʁt ˈkɔx] ⓘ; 11 December 1843 – 27 May 1910) was a German physician and microbiologist. As the discoverer of the specific causative agents of deadly infectious diseases including tuberculosis, cholera and anthrax, he is regarded as one of the main founders ...

  5. Microbiological culture - Wikipedia

    en.wikipedia.org/wiki/Microbiological_culture

    Microbial cultures on solid and liquid media. A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. Microbial cultures are foundational and basic diagnostic methods used as research tools in molecular biology.

  6. Microbiology - Wikipedia

    en.wikipedia.org/wiki/Microbiology

    Microbiology (from Ancient Greek μῑκρος (mīkros) 'small' βίος (bíos) ' life ' and -λογία (-logía) 'study of') is the scientific study of microorganisms, those being of unicellular (single-celled), multicellular (consisting of complex cells), or acellular (lacking cells). [1][2] Microbiology encompasses numerous sub ...

  7. Microbiome - Wikipedia

    en.wikipedia.org/wiki/Microbiome

    A microbiome (from Ancient Greek μικρός (mikrós) 'small' and βίος (bíos) 'life') is the community of microorganisms that can usually be found living together in any given habitat. It was defined more precisely in 1988 by Whipps et al. as "a characteristic microbial community occupying a reasonably well-defined habitat which has ...

  8. Bacteriology - Wikipedia

    en.wikipedia.org/wiki/Bacteriology

    Scanning electron micrograph of Escherichia coli, a common human pathogen and research organism. Bacteriology is the branch and specialty of biology that studies the morphology, ecology, genetics and biochemistry of bacteria as well as many other aspects related to them. This subdivision of microbiology involves the identification ...

  9. Microbial ecology - Wikipedia

    en.wikipedia.org/wiki/Microbial_ecology

    Microbial ecology (or environmental microbiology) is the ecology of microorganisms: their relationship with one another and with their environment. It concerns the three major domains of life— Eukaryota , Archaea , and Bacteria —as well as viruses .