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Bacteria

Bacteria. Simplest type of living things. Characteristics. Bacteria live almost everywhere -air, foods, surfaces of everything you touch Your skin has 100,000 per square cm AND MILLIONS live in YOUR body Come in 3 shapes- sphere , rod, and spiral

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Bacteria

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  1. Bacteria Simplest type of living things

  2. Characteristics • Bacteria live almost everywhere-air, foods, surfaces of everything you touch • Your skin has 100,000 per square cm AND MILLIONS live in YOUR body • Come in 3 shapes-sphere, rod, and spiral • They lack a nucleus and reproduce asexually by fission

  3. Eubacteria • Eubacteria are complex and single celled, unicellular.  Most bacteria are in the THIS kingdom. • They are the kinds of bacteria found everywhere and are the ones people are most familiarwith. 

  4. Eubacteria • Most eubacteria are helpful.  Some produce vitamins and foods like yogurt.

  5. Eubacteria • One group is cyanobacteria called blue green bacteria that makes their own food using carbon dioxide, water and sunlight. • They are covered with a gelatin-like substance and are food for organisms in lakes, ponds and oceans.

  6. Eubacteria • However, these eubacteria, Streptococci pictured, can give you strep throat!

  7. Archaebacteria • They were first discovered in 1983 in the Pacific Ocean where hot gases and molten rock boiled into the ocean from the Earth’s interior • They discovered unicellular (one cell) organisms in the samples

  8. Archaebacteria • Archaebacteria are found in extreme environments such as hot boiling water, over 100 ˚ C! • The hot springs of Yellowstone National Park (Wyoming) was one of the first places they were discovered.

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