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8 Cards in this Set
- Front
- Back
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How old is Earth?
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4.6 billion years old
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How long did it take for Earth to cool off enough to support life?
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500 million years
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Habitable zone
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The space around a star in which water can exist as a liquid
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What did the primordial atmosphere most likely consist of?
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Water vapour, hydrogen, carbon dioxide, ammonia, and methane. There was almost a complete absence of oxygen
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Oparin-Haldane hypothesis
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States that organic molecules essential to life could have formed in the atmosphere of primordial Earth
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Miller-Urey experiment
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Classic experiment in which a mixture of gases similar to that in the atmosphere of primordial Earth was contained in an apparatus. Energy was then added through sparking electrodes in order to see what kinds of organic molecules can be synthesized
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Mitochondrial rRNA is most similar to that of:
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Proteo-bacteria
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Chloroplast rRNA is most similar to that of:
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Cyanobacteria
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