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15 Cards in this Set
- Front
- Back
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Geologic folding can... |
Distort the fossil record |
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Factors affecting fossil record |
Environment, time, geological processes, human bias (paleontology) |
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Changes in the past 5 billion years... |
Climate, atmosphere, land masses, 5 mass extunctions |
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Multicellular eukaryotes date |
1.5 bya |
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Cambrian explosion timeline |
550 mya |
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Extraterrestrial hypothesis |
Materials for life arrived through meteors |
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With the deep sea vent hypothesis ________ mixes with________ formed organic molecules |
Hydrogen sulfide, cold seawater |
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The conversion of _____ to _______ in deep sea vents may have led to amino acids and nucleic acids |
N2 to nh3 |
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Advantage of DNA over RNA |
DNA is less likely to break |
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Eukaryotes arose during the... |
Proterozoic eon |
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The ________ in the ___________ saw the diversification of invertebrates |
Paleozoic era, phanerozoic eon |
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Coal formed during the______ |
Carboniferous period |
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Dinosuars were around during the |
Mesozoic era |
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Phanerozoic eon contained |
Paleozoic, mesozoic, and cenozoic eras |
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Paleozoic era contained |
Silurian, devonian, carboniferous and permian periods |
