Origin of Life Ms. McCabe Biology I/ Biology I Honors

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Presentation transcript:

Origin of Life Ms. McCabe Biology I/ Biology I Honors 2015-2016 Unit 7: Origin and Evolution of Living Things

Standards SC.912.L.15.8 Describe the scientific explanations of the origin of life on Earth. SC.912.L14.5 (Honors) Explain the evidence supporting the scientific theory of the origin eukaryotic cells (endosymbiosis).

Lesson Guiding Questions How did past experiments lead to the development of the scientific explanation for the origin of life? (Honors) How did eukaryotic cells originate?

Does life suddenly appear? Spontaneous Generation

How did we get the complexity of Life? Spontaneous Generation perhaps?

Life had to start somewhere… but where?

What do you think?

Life comes from pre-existing life… but where did “life” come from to begin with?... And how did Life forms become so complex?

How did we go from here to here???

DO NOW - Map it Out: (Read pages 553-563, USE 2 LEGAL-SIZE PAGES - TAPED) Individually, construct a flowchart that shows what scientists hypothesize are the major steps from the origin of Earth (the “early Earth”) to the appearance of eukaryotic cells. In your own words, define/describe the endosymbiotic theory. Summarize the Miller & Urey experiment in your own words. You may sketch the apparatus to aid you in your explanation. Turn in when complete!!!