Chapter 25 Slides Sections 1-3
Chapter 25 Slides Sections 1-3 Chapter 25 Slides Sections 1-3
(percent of present-day levels; log scale) Figure 25.8 1,000 100 Atmospheric O 2 10 1 0.1 0.01 “Oxygen revolution” 0.001 0.0001 4 3 2 1 0 Time (billions of years ago) AP Biology
Figure 25.UN04 1 4 AP Biology Singlecelled eukaryotes 2 3
- Page 1 and 2: “…sparked by just the right com
- Page 3 and 4: Concept 25.1: Conditions on early E
- Page 5 and 6: • In the 1920s, A. I. Oparin and
- Page 7 and 8: Conditions on early Earth AP Biolog
- Page 9 and 10: Stanley Miller University of Chicag
- Page 11 and 12: Abiotic Synthesis of Macromolecules
- Page 13 and 14: • Adding clay can increase the ra
- Page 15 and 16: Self-Replicating RNA and the Dawn o
- Page 17 and 18: The Fossil Record • Sedimentary r
- Page 19 and 20: • Few individuals have fossilized
- Page 21 and 22: Fraction of parent isotope remainin
- Page 23 and 24: Concept 25.3: Key events in life’
- Page 25 and 26: Table 25.1 AP Biology
- Page 27 and 28: Table 25.1b AP Biology
- Page 29 and 30: Figure 25.7-3 Cenozoic Humans Colon
- Page 31 and 32: Figure 25.UN03 1 4 2 3 AP Biology A
- Page 33: • By about 2.7 billion years ago,
- Page 37 and 38: First Eukaryotes • Development of
- Page 39 and 40: 2 nd Endosymbiosis • Evolution of
- Page 41 and 42: Figure 25.UN05 1 4 2 3 AP Biology M
- Page 43 and 44: Figure 25.UN06 Animals 1 4 2 3 AP B
- Page 45 and 46: AP Biology
- Page 47 and 48: Figure 25.10 Sponges Cnidarians Ech
- Page 49 and 50: The Colonization of Land • Fungi,
- Page 51: Is there life elsewhere? Does it lo
(percent of present-day levels; log scale)<br />
Figure <strong>25</strong>.8<br />
1,000<br />
100<br />
Atmospheric O 2<br />
10<br />
1<br />
0.1<br />
0.01<br />
“Oxygen<br />
revolution”<br />
0.001<br />
0.0001<br />
4 3 2 1 0<br />
Time (billions of years ago)<br />
AP Biology
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