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- 1. Multiple Choice
Which types of organisms developed first due to the early environmental conditions on Earth?
prokaryotic and aerobic
prokaryotic and anaerobic
eukaryotic and aerobic
eukaryotic and anaerobic
- 2. Multiple Choice
Which of the following was presumably absent from Earth Early atmosphere based on the conditions present at the time?
Carbon Dioxide (CO2)
Methane (CH4)
Oxygen (O2)
Water(H2O)
Cyanide (CN-)
- 3. Multiple Choice
The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids. Which of the following describes why the Miller-Urey theory is widely accepted today?
Amino acids spontaneously form from molecules in the atmosphere today.
Organic molecules are present today in extremely high concentrations.
The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory.
No other alternative hypotheses have been introduced.
- 4. Multiple Choice
The diagram shows a proposed theory of the origin of eukaryotic cells, called endosymbiosis.
Which of the following explains why cells that contained mitochondria-like organelles had an evolutionary advantage?
They were able to photosynthesize
They had more DNA
They were able to make more use of available energy
They were immune to bacterial invasion.
- 5. Multiple Choice
These scientists proved that organic molecules formed from inorganic molecules present in the Earth’s early atmosphere when given energy from lightening.
Lennon and McCartney
Einstein and Newton
Watson and Crick
Miller and Urey
- 6. Multiple Choice
Mitochondria and chloroplasts are thought to be ________________________ cells engulfed by a larger one.
Plants
Eukaryotic
Prokaryotic
Viruses
- 7. Multiple Choice
What was formed in the Miller-Urey experiments?
amino acids
proteins
living cells
DNA
- 8. Multiple Choice
How are mitochondria and chloroplasts like bacteria cells?
They divide by meiosis
They contain their own DNA
They have the same membrane-bound organelles
They can make their own food
- 9. Multiple Choice
The image provided represents the following experiment to test Earth Early Atmosphere...
Watson-Crick's DNA experiment
Lynn Margullis Endosymbiotic Theory
Miller-Urey Experiment
Einstein's theory of general relativity
- 10. Multiple Choice
One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?
onset of photosynthesis
origin of genetic material
Synthesis of organic molecules
formation of the plasma membrane
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