Evolution

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Evolution Lesson 2

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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. - PowerPoint PPT Presentation

Transcript of Evolution

Page 1: Evolution

Evolution

Lesson 2

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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?

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Bacteria are Everywhere

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Bacteria Live In Your Guts

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

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Bacteria Live in Your Stomach

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Bacteria Live in Your Mouth

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Bacteria Live in Your Nose

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Got Oxygen? Thank Cyanobacteria!

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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

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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?