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Links for 2b. Bacteria: The Good, The Bad, and The Ugly
RATINGS: Sites are rated from 1 owl (good) to a high of 5 owls. Read more
- You're Surrounded
      Without bacteria, it would be impossible to have a nice garden. The waste from billions of creatures would pile sky-high, because there would be nothing to break it down. And plenty of bacteria-eating organisms would starve. After reviewing some bacteria basics, this Utah education website includes a few fun activities and links to other explanations.
- Bacteria by Rachel
      Whooping cough, strep throat, ear infections these sicknesses immediately come to mind when one hears the word "bacteria." But would advanced forms of life be possible without the help of bacteria? A young student puts things into perspective by demonstrating how both plants and animals rely on bacteria for their well-being.
- Bacteria-Animal Symbiosis
      "Symbiosis" is such a peaceful word. Actually, it describes a very peaceful state of affairs. Remember the phrase "I'll scratch your back, you scratch mine"? That is symbiosis. This site from the University of Bern in Switzerland highlights brings bacteria-animal symbiosis. Note: some sections of the site are geared toward advanced biology students.
- Bacteria and Soil
      A clump of soil is a lifeless handful of pulverized, slightly damp rocks ... or is it? A closer look at the apparently inanimate mass reveals loads of bacteria all different kinds busily decomposing dead material, fixing nutrients to plant roots, or even providing soil stability with sticky secretions. The Bureau of Land Management reveals how bacteria are essential to healthy soil.
- Decomposers
      Some bacteria work like a natural garbage disposal: they break dead organisms down into their original components and return them to the soil, where their nutrients can be reused. These are known as decomposers (saprophytes), and although there are others (such as including fungus and earthworms), bacteria are the major players in decomposition. This educational nature webpage describes the importance of bacteria in decomposition. 
- The Black Death
      It took 900 years for the bacterium that causes bubonic plague to travel from China to Europe. But once there, it spread with a vengeance, more than decimating the population. Why? In matters of public health, where there's no clean water and good sanitation, disease and death will find a home. This History Magazine article examines the spread, symptoms, causes, and psychological affects of the Black Death as it spread through medieval Europe.

Bacteria: The Good, The Bad, and The Ugly
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