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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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Lesson 2

Cells are the basic unit of life

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 are Everywhere

Bacteria live in your guts

Bacteria Live In Your Guts


Bacteria live in your stomach

Bacteria Live in Your Stomach

Bacteria live in your mouth

Bacteria Live in Your Mouth

Bacteria live in your nose

Bacteria Live in Your Nose

Got oxygen thank cyanobacteria

Got Oxygen? Thank Cyanobacteria!

Similarities and differences

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



  • 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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