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  1. Dictionary
    bacterium
    /bakˈtɪərɪəm/

    noun

    • 1. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

    More definitions, origin and scrabble points

  2. Oct 4, 2019 · Bacteria Definition. Bacteria are single-celled microorganisms with prokaryotic cells, which are single cells that do not have organelles or a true nucleus and are less complex than eukaryotic cells. Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life.

  3. “Bacteria are unicellular organisms belonging to the prokaryotic group where the organisms lack a few organelles and a true nucleus”. Also Read: Gram Negative Bacteria. Bacteria Diagram. The bacteria diagram given below represents the structure of a typical bacterial cell with its different parts.

  4. Dec 2, 2022 · Bacteria are microscopic living organisms that have only one cell. Most bacteria aren’t harmful, but certain types can make you sick.

  5. en.m.wikipedia.org › wiki › BacteriaBacteria - Wikipedia

    Bacteria ( / bækˈtɪəriə / ⓘ; sg.: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats.

  6. Jul 24, 2022 · Bacteria are defined as organisms that are microscopic, unicellular, independently reproducing, and mostly free-living. Bacteria are ubiquitous in nature. They are structurally simple but functionally complex organisms that form the basis of all life on earth.

  7. Jun 11, 2024 · Bacteria are microscopic single-celled organisms that inhabit virtually all environments on Earth, including the bodies of multicellular animals. Bacteria lack a membrane-bound nucleus and other internal structures.

  8. Bacteria are single celled microbes that are found in every habitat on Earth. There are approximately 10 times as many bacterial cells as human cells in the human body. Relatively few bacteria cause disease in humans, animals and plants.

  9. The meaning of BACTERIA is bacterium. How to use bacteria in a sentence. Is bacteria singular or plural?: Usage Guide

  10. Bacteria definition: ubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising numerous and variously classified phyla. See examples of BACTERIA used in a sentence.

  11. Oct 19, 2023 · Article. Vocabulary. Bacteria inhabit various environments throughout the earth. They live virtually everywhere, including within our bodies. Most bacteria do not cause humans harm, but some can infect humans and cause disease.