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en.wikipedia.org/wiki/Economic_importance_of_bacteria

Bacteria are economically important as these microorganisms are used by humans for many purposes and are harmful in causing disease and spoiling food . The beneficial uses of bacteria include the production of traditional foods ...

www.sciencelearn.org.nz/resources/588-bacteria-good-bad-and-ugly

Nov 9, 2008 ... Bacteria range from the essential and useful, to the harmful.

www.enotes.com/homework-help/please-give-3-examples-helpful-bacteria-3-examples-156127

Apr 10, 2010 ... Get an answer for 'Please give 3 examples of helpful bacteria and 3 examples of harmful bacteria.' and find homework help for other Science ...

www.reference.com/science/four-ways-bacteria-can-helpful-humans-81f75d904cb1b756

Though some bacterias cause disease and illness in humans, the majority are harmless. Some bacterias are used to aid digestion, used in preparation of certain ...

www.huffingtonpost.ca/natasha-turner-nd/good-bacteria_b_3573222.html

Jul 10, 2013 ... These days we are constantly bombarded by commercial messages urging us to fight germs and rid ourselves of bacteria. But in the right ...

www.livestrong.com/article/95239-good-bacteria-helpful-environment

Mar 18, 2010 ... We think about bacteria as harmful, disease-causing, invisible creatures. But actually, only a few species are dangerous. The majority of ...

microbemagic.ucc.ie/about_microbes/good_bacteria.html

Bacteria aren't all bad, in fact you couldn't survive without some bacteria! Good bacteria in your gut, probiotics like GI Jake, help digest your food and fight ...

www.brighthub.com/science/genetics/articles/41263.aspx

Jul 5, 2010 ... Unlike pathogenic bacteria that can cause you harm, here are three friendly and helpful bacteria that do you the power of good.

www.ck12.org/book/CK-12-Life-Science-Concepts-For-Middle-School/section/5.4

Nov 29, 2012 ... Discusses bacteria which are beneficial to other organisms.

www.biotecharticles.com/Biology-Article/Beneficial-and-Harmful-Bacteria-312.html

Sep 10, 2013 ... Bacteria is the most useful microorganism in the environment and beneficial for human beings. But it also has some harmful effects on human ...