Evolution
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Evolution. Lesson 2. Cells are the basic unit of life. Where do we find cells? How do we know something is a cell? Where did the first cells come from?. Bacteria are Everywhere. Bacteria Live In Your Guts.

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Evolution

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Evolution

Lesson 2


Cells are the basic unit of life

  • Where do we find cells?

  • How do we know something is a cell?

  • Where did the first cells come from?


Bacteria are Everywhere


Bacteria Live In Your Guts

http://ngm.nationalgeographic.com/2013/01/125-microbes/oeggerli-photography#/05-intestinal-bacteria-670.jpg


Bacteria Live in Your Stomach


Bacteria Live in Your Mouth


Bacteria Live in Your Nose


Got Oxygen? Thank Cyanobacteria!


Similarities and Differences

  • Connect the dots! Thinking about the Tree of Life concept, what characteristics can you use to determine how different species are related? How will you represent your data?

  • Characteristics to consider include:

    • Energy source(s)

    • Mobility

    • Geography

    • Reproduction


Debrief

  • Groups share out

  • If you were to construct a Tree of Life using one or more of the characteristics presented, which would you use and why?

  • What information do you need and how would you find it?


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