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Questions and Answers
What is believed to have fueled the reactions that formed organic compounds on early Earth?
What is believed to have fueled the reactions that formed organic compounds on early Earth?
What kind of cells are indicated by fossils to be the first cells on Earth?
What kind of cells are indicated by fossils to be the first cells on Earth?
What is the primary source of energy for anaerobic pathways?
What is the primary source of energy for anaerobic pathways?
Where did the first complex biological molecules form according to one hypothesis?
Where did the first complex biological molecules form according to one hypothesis?
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When did cyanobacteria populations increase, leading to an increase in oxygen levels?
When did cyanobacteria populations increase, leading to an increase in oxygen levels?
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What was the function of the clay in the tidal flats according to one hypothesis?
What was the function of the clay in the tidal flats according to one hypothesis?
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What is the primary characteristic of eukaryotes?
What is the primary characteristic of eukaryotes?
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What is the name of the scientist who first tested the hypothesis that simple compounds can form by chemical processes?
What is the name of the scientist who first tested the hypothesis that simple compounds can form by chemical processes?
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What is a possible source of simple organic compounds according to research?
What is a possible source of simple organic compounds according to research?
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What is the term for the process by which cells evolved into mitochondria, chloroplasts, and other organelles?
What is the term for the process by which cells evolved into mitochondria, chloroplasts, and other organelles?
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What is the age of the oldest known eukaryotic fossil?
What is the age of the oldest known eukaryotic fossil?
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What is the name of the red alga that lived 1.2 billion years ago?
What is the name of the red alga that lived 1.2 billion years ago?
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What is a characteristic of a mitochondrion's DNA?
What is a characteristic of a mitochondrion's DNA?
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During which era did life begin to form on dry land?
During which era did life begin to form on dry land?
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What percentage of life in the ocean disappeared at the end of the Paleozoic Era?
What percentage of life in the ocean disappeared at the end of the Paleozoic Era?
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In which era did mammals evolve adaptations to live in various environments?
In which era did mammals evolve adaptations to live in various environments?
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What is a characteristic of the inner membrane of a mitochondrion?
What is a characteristic of the inner membrane of a mitochondrion?
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What occurred at the end of the Mesozoic Era?
What occurred at the end of the Mesozoic Era?
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