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Bacteria
Bacteria are single-celled, or simple, organisms. Though small, bacteria are powerful and complex, and they can survive in extreme conditions. More »
Source: healthline.com

Bacteria - Wikipedia

en.wikipedia.org/wiki/Bacteria

Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from ...

Bacteria: Definition, Types & Infections - Live Science

www.livescience.com/51641-bacteria.html

Jul 23, 2015 ... Bacteria are microscopic single-celled organisms that can be helpful, such as those that live in our guts, or harmful, such as flesh-eating ...

Bacteria - MicrobeWorld

www.microbeworld.org/types-of-microbes/bacteria

Bacteria consist of only a single cell, but don't let their small size and seeming simplicity fool you. They're an amazingly complex and fascinating group of ...

What Is Bacteria? What Are Bacteria? - Medical News Today

www.medicalnewstoday.com/articles/157973.php

Jan 11, 2016 ... The word bacteria is the plural of bacterium. Grammatically the headline should just say "What are bacteria?" The incorrect usage has been ...

bacteria - Dictionary Definition : Vocabulary.com

www.vocabulary.com/dictionary/bacteria

Bacteria are microscopic living organisms, usually one-celled, that can be found everywhere. They can be dangerous, such as when they cause infection, ...

Introduction to the Bacteria

www.ucmp.berkeley.edu/bacteria/bacteria.html

Bacteria are often maligned as the causes of human and animal disease (like this one, Leptospira, which causes serious disease in livestock). However, certain ...

Definition of Bacteria - MedicineNet

www.medicinenet.com/script/main/art.asp?articlekey=13954

Bacteria: Single-celled microorganisms that can exist either as independent (free -living) organisms or as parasites (dependent on another organism for life).

Bacterial Infections: MedlinePlus

medlineplus.gov/bacterialinfections.html

Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a  ...

bacteria | Britannica.com

www.britannica.com/science/bacteria

Aug 31, 2015 ... Bacteria, singular bacterium, any of a group of microscopic single-celled organisms that live in enormous numbers in almost every environment ...