Bacteria are single-celled, or simple, organisms. Though small, bacteria are powerful and complex, and they can survive in extreme conditions.
Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few
micrometres in length, bacteria have a number of shapes, ranging from ...
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 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 ...
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 are microscopic living organisms, usually one-celled, that can be found
everywhere. They can be dangerous, such as when they cause infection, ...
Bacteria are often maligned as the causes of human and animal disease (like this
one, Leptospira, which causes serious disease in livestock). However, certain ...
Bacteria: Single-celled microorganisms that can exist either as independent (free
-living) organisms or as parasites (dependent on another organism for life).
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
Aug 31, 2015 ... Bacteria, singular bacterium, any of a group of microscopic single-celled
organisms that live in enormous numbers in almost every environment ...